NO831381L - Fremgangsmaate for fremstilling av meget smaa kapsler. - Google Patents

Fremgangsmaate for fremstilling av meget smaa kapsler.

Info

Publication number: NO831381L
Authority: NO; Norway
Prior art keywords: poly; capsule; maleic anhydride; salt; negatively charged
Prior art date: 1982-04-20

Application number

NO831381A

Other languages

English (en)

Norwegian (no)

Inventor

Donald Edward Hayford

Original Assignee

Appleton Paper Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1982-04-20

Filing date

1983-04-19

Publication date

1983-10-21

1983-04-19 Application filed by Appleton Paper Inc filed Critical Appleton Paper Inc

1983-10-21 Publication of NO831381L publication Critical patent/NO831381L/no

Links

238000000034 method Methods 0.000 title claims abstract description 52
238000004519 manufacturing process Methods 0.000 title claims abstract description 12
239000002775 capsule Substances 0.000 claims abstract description 67
239000000463 material Substances 0.000 claims abstract description 45
229920000867 polyelectrolyte Polymers 0.000 claims abstract description 25
150000003839 salts Chemical class 0.000 claims abstract description 20
229920000877 Melamine resin Polymers 0.000 claims abstract description 11
239000002253 acid Substances 0.000 claims abstract description 9
239000002243 precursor Substances 0.000 claims abstract description 9
150000001450 anions Chemical class 0.000 claims abstract description 7
150000001768 cations Chemical class 0.000 claims abstract description 6
230000000737 periodic effect Effects 0.000 claims abstract description 6
230000002378 acidificating effect Effects 0.000 claims abstract description 3
125000001453 quaternary ammonium group Chemical group 0.000 claims abstract description 3
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
229920002125 Sokalan® Polymers 0.000 claims description 18
239000011162 core material Substances 0.000 claims description 17
-1 poly(acrylic acid) Polymers 0.000 claims description 17
239000007788 liquid Substances 0.000 claims description 16
229920000642 polymer Polymers 0.000 claims description 13
238000006068 polycondensation reaction Methods 0.000 claims description 12
238000002360 preparation method Methods 0.000 claims description 12
150000001875 compounds Chemical class 0.000 claims description 11
MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 claims description 10
JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 8
238000009833 condensation Methods 0.000 claims description 7
230000005494 condensation Effects 0.000 claims description 7
239000006185 dispersion Substances 0.000 claims description 6
238000006116 polymerization reaction Methods 0.000 claims description 6
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
239000002245 particle Substances 0.000 claims description 4
LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical group [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 4
229910002651 NO3 Inorganic materials 0.000 claims description 3
229910019142 PO4 Inorganic materials 0.000 claims description 3
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
230000015572 biosynthetic process Effects 0.000 claims description 3
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
239000010452 phosphate Substances 0.000 claims description 3
239000007787 solid Substances 0.000 claims description 3
VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 2
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
229920000388 Polyphosphate Polymers 0.000 claims description 2
125000004432 carbon atom Chemical group C* 0.000 claims description 2
239000007791 liquid phase Substances 0.000 claims description 2
VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
229910052751 metal Inorganic materials 0.000 claims description 2
239000002184 metal Substances 0.000 claims description 2
238000005191 phase separation Methods 0.000 claims description 2
239000001205 polyphosphate Substances 0.000 claims description 2
235000011176 polyphosphates Nutrition 0.000 claims description 2
229910000160 potassium phosphate Inorganic materials 0.000 claims description 2
235000011009 potassium phosphates Nutrition 0.000 claims description 2
229910021653 sulphate ion Inorganic materials 0.000 claims description 2
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
229920002554 vinyl polymer Polymers 0.000 claims description 2
VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical class OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims 1
125000001931 aliphatic group Chemical group 0.000 claims 1
150000001805 chlorine compounds Chemical group 0.000 claims 1
150000002500 ions Chemical class 0.000 claims 1
IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 abstract description 5
230000035699 permeability Effects 0.000 description 21
239000000243 solution Substances 0.000 description 20
239000003094 microcapsule Substances 0.000 description 13
238000004945 emulsification Methods 0.000 description 11
239000000839 emulsion Substances 0.000 description 11
239000000203 mixture Substances 0.000 description 9
238000005538 encapsulation Methods 0.000 description 8
229920000147 Styrene maleic anhydride Polymers 0.000 description 7
239000004490 capsule suspension Substances 0.000 description 7
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
238000003756 stirring Methods 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
238000006243 chemical reaction Methods 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 4
230000009286 beneficial effect Effects 0.000 description 4
239000011248 coating agent Substances 0.000 description 4
238000000576 coating method Methods 0.000 description 4
238000011065 in-situ storage Methods 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 3
239000000284 extract Substances 0.000 description 3
239000007858 starting material Substances 0.000 description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
229920003270 Cymel® Polymers 0.000 description 2
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
239000003593 chromogenic compound Substances 0.000 description 2
230000008021 deposition Effects 0.000 description 2
238000009826 distribution Methods 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
230000001939 inductive effect Effects 0.000 description 2
150000007522 mineralic acids Chemical class 0.000 description 2
150000007524 organic acids Chemical class 0.000 description 2
229920005989 resin Polymers 0.000 description 2
239000011347 resin Substances 0.000 description 2
239000000725 suspension Substances 0.000 description 2
TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 1
KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
239000005977 Ethylene Substances 0.000 description 1
229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
229920001807 Urea-formaldehyde Polymers 0.000 description 1
238000007171 acid catalysis Methods 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
150000001447 alkali salts Chemical class 0.000 description 1
150000004996 alkyl benzenes Chemical class 0.000 description 1
239000000908 ammonium hydroxide Substances 0.000 description 1
239000007844 bleaching agent Substances 0.000 description 1
150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
239000004927 clay Substances 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
238000001035 drying Methods 0.000 description 1
239000003995 emulsifying agent Substances 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
239000012530 fluid Substances 0.000 description 1
230000007774 longterm Effects 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
238000002156 mixing Methods 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
238000010979 pH adjustment Methods 0.000 description 1
239000005011 phenolic resin Substances 0.000 description 1
229920001568 phenolic resin Polymers 0.000 description 1
ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
229910001414 potassium ion Inorganic materials 0.000 description 1
230000002028 premature Effects 0.000 description 1
239000000047 product Substances 0.000 description 1
238000000926 separation method Methods 0.000 description 1
239000002904 solvent Substances 0.000 description 1
239000001119 stannous chloride Substances 0.000 description 1
235000011150 stannous chloride Nutrition 0.000 description 1
238000003860 storage Methods 0.000 description 1
229920003169 water-soluble polymer Polymers 0.000 description 1
238000005303 weighing Methods 0.000 description 1
239000008096 xylene Substances 0.000 description 1
150000003738 xylenes Chemical class 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
- B01J13/18—In situ polymerisation with all reactants being present in the same phase
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Dispersion Chemistry (AREA)
Polymers & Plastics (AREA)
Medicinal Chemistry (AREA)
Health & Medical Sciences (AREA)
Manufacturing Of Micro-Capsules (AREA)
Color Printing (AREA)
Medicinal Preparation (AREA)
Materials For Photolithography (AREA)
Investigating Or Analysing Biological Materials (AREA)
Materials For Medical Uses (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

NO831381A 1982-04-20 1983-04-19 Fremgangsmaate for fremstilling av meget smaa kapsler. NO831381L (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/370,323 US4444699A (en)	1982-04-20	1982-04-20	Capsule manufacture

Publications (1)

Publication Number	Publication Date
NO831381L true NO831381L (no)	1983-10-21

Family

ID=23459167

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO831381A NO831381L (no)	1982-04-20	1983-04-19	Fremgangsmaate for fremstilling av meget smaa kapsler.

Country Status (15)

Country	Link
US (1)	US4444699A (sv)
EP (1)	EP0092356B1 (sv)
JP (1)	JPH0824841B2 (sv)
AT (1)	ATE18512T1 (sv)
AU (1)	AU554433B2 (sv)
BR (1)	BR8301972A (sv)
CA (1)	CA1188164A (sv)
DE (1)	DE3362497D1 (sv)
DK (1)	DK170683A (sv)
ES (1)	ES8404199A1 (sv)
FI (1)	FI71503C (sv)
GR (1)	GR77458B (sv)
NO (1)	NO831381L (sv)
PT (1)	PT76550A (sv)
ZA (1)	ZA832519B (sv)

Families Citing this family (65)

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US5139787A (en) *	1989-01-19	1992-08-18	Wm. Wrigley Jr. Company	Gum composition containing dispersed porous beads containing active chewing gum ingredients and method
US5126174A (en) *	1989-02-16	1992-06-30	Wm. Wrigley Jr. Company	Food packaging improvements
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US5154938A (en) *	1990-12-20	1992-10-13	Wm. Wrigley Jr. Company	Gum composition having dispersed porous beads containing plasticizers
US5733561A (en) *	1991-06-12	1998-03-31	Mitsui Toatsu Chemicals, Incorporated	Insecticide composition and production process thereof
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US5843409A (en) *	1994-08-08	1998-12-01	Colgate Palmolive Company	Two component dentifrice for the treatment of dentinal hypersensitivity
FR2727633A1 (fr)	1994-12-02	1996-06-07	Copigraph	Microcapsules contenant a titre de solvant un derive terpenique ou d'acide abietique et papiers sensibles a la pression revetus de ces microcapsules
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JP4851465B2 (ja)	2004-11-08	2012-01-11	フレッシュポイント・ホールディングス・ソシエテ・アノニム	時間温度指示装置
EP1863634B1 (en)	2005-03-25	2017-03-29	Encapsys, Llc	Adhesively securable stock materials
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JP6283607B2 (ja)	2011-04-07	2018-02-21	ザプロクターアンドギャンブルカンパニー	ポリアクリレートマイクロカプセルの堆積が増大されたパーソナルクレンジング組成物
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CN121420025A (zh)	2023-06-28	2026-01-27	恩盖普有限公司	植物基面粉递送颗粒的组合物
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WO2025128660A1 (en)	2023-12-13	2025-06-19	Encapsys, Llc	Dried degradable delivery particles from mixed isocyanates comprising an aromatic moiety and chitosan
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1982
- 1982-04-20 US US06/370,323 patent/US4444699A/en not_active Expired - Lifetime
1983
- 1983-03-18 CA CA000424001A patent/CA1188164A/en not_active Expired
- 1983-04-11 AT AT83302008T patent/ATE18512T1/de not_active IP Right Cessation
- 1983-04-11 ZA ZA832519A patent/ZA832519B/xx unknown
- 1983-04-11 EP EP83302008A patent/EP0092356B1/en not_active Expired
- 1983-04-11 DE DE8383302008T patent/DE3362497D1/de not_active Expired
- 1983-04-13 AU AU13490/83A patent/AU554433B2/en not_active Ceased
- 1983-04-14 PT PT76550A patent/PT76550A/pt unknown
- 1983-04-18 GR GR71116A patent/GR77458B/el unknown
- 1983-04-18 BR BR8301972A patent/BR8301972A/pt unknown
- 1983-04-18 FI FI831295A patent/FI71503C/sv not_active IP Right Cessation
- 1983-04-19 NO NO831381A patent/NO831381L/no unknown
- 1983-04-19 ES ES521609A patent/ES8404199A1/es not_active Expired
- 1983-04-19 DK DK170683A patent/DK170683A/da not_active IP Right Cessation
- 1983-04-20 JP JP58069863A patent/JPH0824841B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA1188164A (en)	1985-06-04
DK170683D0 (da)	1983-04-19
FI71503C (sv)	1987-01-19
FI71503B (fi)	1986-10-10
ES521609A0 (es)	1984-04-16
BR8301972A (pt)	1983-12-20
ES8404199A1 (es)	1984-04-16
PT76550A (en)	1983-05-01
DE3362497D1 (en)	1986-04-17
EP0092356A3 (en)	1983-12-07
JPH0824841B2 (ja)	1996-03-13
FI831295L (fi)	1983-10-21
AU554433B2 (en)	1986-08-21
EP0092356A2 (en)	1983-10-26
ZA832519B (en)	1984-02-29
GR77458B (sv)	1984-09-24
ATE18512T1 (de)	1986-03-15
US4444699A (en)	1984-04-24
JPS58216737A (ja)	1983-12-16
DK170683A (da)	1983-10-21
AU1349083A (en)	1983-10-27
EP0092356B1 (en)	1986-03-12
FI831295A0 (fi)	1983-04-18

Publication	Publication Date	Title
NO831381L (no)	1983-10-21	Fremgangsmaate for fremstilling av meget smaa kapsler.
US4100103A (en)	1978-07-11	Capsule manufacture
US4552811A (en)	1985-11-12	Capsule manufacture
US4406816A (en)	1983-09-27	Process for the preparation of microcapsules, and the microcapsules obtained thereby
US4328119A (en)	1982-05-04	Method of making microcapsules
US4087376A (en)	1978-05-02	Capsule manufacture
EP0120504B1 (en)	1986-10-22	Method of preparing microcapsules
NO130632B (sv)	1974-10-07
US4753968A (en)	1988-06-28	Process for preparing microcapsules
US4089834A (en)	1978-05-16	Water-resistant micro-capsular opacifier system and products
US4413843A (en)	1983-11-08	Microcapsules, method for their production and pressure sensitive copying sheet
US4675249A (en)	1987-06-23	Capsule manufacture
CA1178493A (en)	1984-11-27	Method of making microcapsules having aminoaldehyde resin walls by condensation in the presence of cation-modified pva
FI74241C (sv)	1988-01-11	Förfarande för framställning av små kapslar.
US3707514A (en)	1972-12-26	Synthetic organic pigments and method for their production
US4000345A (en)	1976-12-28	Substrate having coating thereon comprising microcapsular opacifying agents, and method of preparing same
JPS6256779B2 (sv)	1987-11-27
CA1108944A (en)	1981-09-15	Capsule manufacture
JPS62250943A (ja)	1987-10-31	マイクロカプセルの製造方法
CA1108942A (en)	1981-09-15	Capsule manufacture
JPS61118133A (ja)	1986-06-05	マイクロカプセルの製造方法
JPH0233415B2 (sv)	1990-07-27
NO146485B (no)	1982-07-05	Fremgangsmaate til massefremstilling av meget smaa polymerkapsler
JPS59196732A (ja)	1984-11-08	マイクロカプセルの製造方法
JPS6365944A (ja)	1988-03-24	マイクロカプセルの製造方法