CA1049729A - Coextrusion de couches de polystyrenes de differentes densites - Google Patents

Coextrusion de couches de polystyrenes de differentes densites

Info

Publication number: CA1049729A
Authority: CA; Canada
Prior art keywords: melt; nucleating agent; streams; laminate; die
Prior art date: 1973-11-29
Legal status (The legal status 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 status listed.): Expired

Application number

CA214,855A

Other languages

English (en)

Other versions

CA214855S (en

Inventor

Edward A. Colombo

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mobil Oil AS

Original Assignee

Mobil Oil AS

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.)

1973-11-29

Filing date

1974-11-28

Publication date

1979-03-06

1974-11-28 Application filed by Mobil Oil AS filed Critical Mobil Oil AS

1979-03-06 Application granted granted Critical

1979-03-06 Publication of CA1049729A publication Critical patent/CA1049729A/fr

Status Expired legal-status Critical Current

Links

239000004793 Polystyrene Substances 0.000 title claims abstract description 10
229920002223 polystyrene Polymers 0.000 title claims abstract description 10
239000002667 nucleating agent Substances 0.000 claims abstract description 38
239000000155 melt Substances 0.000 claims abstract description 29
239000000463 material Substances 0.000 claims description 40
239000004604 Blowing Agent Substances 0.000 claims description 23
238000000034 method Methods 0.000 claims description 16
230000000694 effects Effects 0.000 claims description 12
238000001125 extrusion Methods 0.000 claims description 9
239000002648 laminated material Substances 0.000 claims description 5
238000010438 heat treatment Methods 0.000 claims description 4
239000007788 liquid Substances 0.000 claims description 4
229920006327 polystyrene foam Polymers 0.000 claims 1
238000001816 cooling Methods 0.000 description 12
229920005989 resin Polymers 0.000 description 12
239000011347 resin Substances 0.000 description 12
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 11
239000000203 mixture Substances 0.000 description 10
239000012815 thermoplastic material Substances 0.000 description 10
239000003795 chemical substances by application Substances 0.000 description 9
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 8
239000002253 acid Substances 0.000 description 7
239000006260 foam Substances 0.000 description 6
229920000642 polymer Polymers 0.000 description 6
OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
239000011162 core material Substances 0.000 description 4
AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 4
150000003839 salts Chemical class 0.000 description 4
229910000029 sodium carbonate Inorganic materials 0.000 description 4
150000007513 acids Chemical class 0.000 description 3
229960004106 citric acid Drugs 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
150000007524 organic acids Chemical class 0.000 description 3
230000034563 regulation of cell size Effects 0.000 description 3
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
238000013459 approach Methods 0.000 description 2
239000001569 carbon dioxide Substances 0.000 description 2
229910002092 carbon dioxide Inorganic materials 0.000 description 2
238000002156 mixing Methods 0.000 description 2
229910052708 sodium Inorganic materials 0.000 description 2
239000011734 sodium Substances 0.000 description 2
229920005992 thermoplastic resin Polymers 0.000 description 2
BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
241000518994 Conta Species 0.000 description 1
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
238000007792 addition Methods 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229960004543 anhydrous citric acid Drugs 0.000 description 1
229910052788 barium Inorganic materials 0.000 description 1
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
239000011324 bead Substances 0.000 description 1
239000001273 butane Substances 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
239000011575 calcium Substances 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
150000008282 halocarbons Chemical class 0.000 description 1
239000011874 heated mixture Substances 0.000 description 1
229910052744 lithium Inorganic materials 0.000 description 1
239000012803 melt mixture Substances 0.000 description 1
IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
238000004806 packaging method and process Methods 0.000 description 1
238000012856 packing Methods 0.000 description 1
239000008188 pellet Substances 0.000 description 1
239000003208 petroleum Substances 0.000 description 1
239000011148 porous material Substances 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
239000011591 potassium Substances 0.000 description 1
239000001294 propane Substances 0.000 description 1
229910052712 strontium Inorganic materials 0.000 description 1
CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
229920001169 thermoplastic Polymers 0.000 description 1
230000001988 toxicity Effects 0.000 description 1
231100000419 toxicity Toxicity 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0221—Vinyl resin
- B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging

Landscapes

Chemical & Material Sciences (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)
Molding Of Porous Articles (AREA)

CA214,855A 1973-11-29 1974-11-28 Coextrusion de couches de polystyrenes de differentes densites Expired CA1049729A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US42002573A	1973-11-29	1973-11-29

Publications (1)

Publication Number	Publication Date
CA1049729A true CA1049729A (fr)	1979-03-06

Family

ID=23664760

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA214,855A Expired CA1049729A (fr)	1973-11-29	1974-11-28	Coextrusion de couches de polystyrenes de differentes densites

Country Status (9)

Country	Link
JP (1)	JPS5746418B2 (fr)
BE (1)	BE822475A (fr)
CA (1)	CA1049729A (fr)
DE (1)	DE2456337A1 (fr)
ES (1)	ES432015A1 (fr)
FR (1)	FR2252915B1 (fr)
GB (1)	GB1439438A (fr)
IT (1)	IT1026617B (fr)
NL (1)	NL7415497A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4518557A (en) *	1981-05-18	1985-05-21	James River-Norwalk, Inc.	Process for skin foam
DE3722539A1 (de) *	1987-07-08	1989-01-19	Reichenecker Hans Storopack	Geschaeumter formkoerper
US5215691A (en) *	1990-09-05	1993-06-01	The Dow Chemical Company	Method of forming a coextruded foam composite
US5358675A (en) *	1992-05-13	1994-10-25	Mobil Oil Corporation	Controlling heterogeneous nucleation and growth of foams
US7655296B2 (en)	2003-04-10	2010-02-02	3M Innovative Properties Company	Ink-receptive foam article
US7820282B2 (en)	2003-04-10	2010-10-26	3M Innovative Properties Company	Foam security substrate
GB2474431B (en)	2009-10-13	2012-10-31	Gurit Uk Ltd	Production of extruded foam
PL2634210T3 (pl) *	2012-03-02	2019-03-29	Orac Holding Nv	Sposób wytwarzania profilu kompozytowego z tworzywa sztucznego

1974
- 1974-11-12 GB GB4890874A patent/GB1439438A/en not_active Expired
- 1974-11-16 ES ES432015A patent/ES432015A1/es not_active Expired
- 1974-11-21 JP JP49133242A patent/JPS5746418B2/ja not_active Expired
- 1974-11-21 BE BE150749A patent/BE822475A/fr unknown
- 1974-11-27 NL NL7415497A patent/NL7415497A/xx not_active Application Discontinuation
- 1974-11-28 CA CA214,855A patent/CA1049729A/fr not_active Expired
- 1974-11-28 DE DE19742456337 patent/DE2456337A1/de not_active Withdrawn
- 1974-11-28 IT IT29956/74A patent/IT1026617B/it active
- 1974-11-29 FR FR7439288A patent/FR2252915B1/fr not_active Expired

Also Published As

Publication number	Publication date
NL7415497A (nl)	1975-06-02
GB1439438A (en)	1976-06-16
JPS5086559A (fr)	1975-07-11
JPS5746418B2 (fr)	1982-10-02
FR2252915A1 (fr)	1975-06-27
BE822475A (fr)	1975-05-21
IT1026617B (it)	1978-10-20
FR2252915B1 (fr)	1978-11-24
DE2456337A1 (de)	1975-06-05
ES432015A1 (es)	1976-10-16

Publication	Publication Date	Title
US4426065A (en)	1984-01-17	Continuous process for the production of polystyrene foamed articles
US4107247A (en)	1978-08-15	Method of co-extrusion with foam core
US5215691A (en)	1993-06-01	Method of forming a coextruded foam composite
US4206165A (en)	1980-06-03	Method of co-extrusion with foam core
US8865037B2 (en)	2014-10-21	Method of manufacturing foamed thermoplastic films and trash bags
US4746477A (en)	1988-05-24	Production of partially foamed extruded plastic products
US4518557A (en)	1985-05-21	Process for skin foam
US4456571A (en)	1984-06-26	Process and apparatus for forming a composite foamed polymeric sheet structure having comparatively high density skin layers and a comparatively low density core layer
US3864444A (en)	1975-02-04	Method of producing a foamed polystyrene sheet having a density gradient decreasing from the external surfaces inwardly
US5286429A (en)	1994-02-15	High melt index polystyrene foam and method
CA1049729A (fr)	1979-03-06	Coextrusion de couches de polystyrenes de differentes densites
KR930700590A (ko)	1993-03-15	폴리프로필렌 폼 시이트
CN104401076A (zh)	2015-03-11	一种ldpe高发泡复合hdpe膜及其制备方法
US5356944A (en)	1994-10-18	High melt index polystytene foam and method
US4803035A (en)	1989-02-07	Method for making composite films
CN104480799A (zh)	2015-04-01	Ldpe高发泡复合牛皮纸及其制备方法
CA2240774A1 (fr)	1997-06-26	Mousse thermoplastique et procede de production de cette mousse a l'aide de dioxyde de carbone
AU680687B2 (en)	1997-08-07	Process for the production of products of light cellular plastic with closed cells
US6723264B1 (en)	2004-04-20	Method of making biodegradable packaging material
KR910008854B1 (ko)	1991-10-21	일체로 성형된 발포층을 가진 플라스틱 물품용 조성물
US6666998B2 (en)	2003-12-23	Method and device for producing at least partially open-celled foam films from styrene polymers
US3966373A (en)	1976-06-29	Apparatus for the continuous extrusion of small cross-section thermoplastic foam profiles
WO2020055274A1 (fr)	2020-03-19	Feuille thermoplastique multicouche et son procédé de production
CA2234262A1 (fr)	1998-02-12	Agent de compatibilisation a base d'hydrocarbure oxygene destine a des mousses polyolefiniques souffles au moyen de dioxyde de carbone
JPH0550975B2 (fr)	1993-07-30