UST866013I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST866013I4 UST866013I4 US866013DH UST866013I4 US T866013 I4 UST866013 I4 US T866013I4 US 866013D H US866013D H US 866013DH US T866013 I4 UST866013 I4 US T866013I4
- Authority
- US
- United States
- Prior art keywords
- defensive publication
- application
- styrene
- graft
- published
- Prior art date
- 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.)
- Pending
Links
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 239000004793 Polystyrene Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910021551 Vanadium(III) chloride Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- HQYCOEXWFMFWLR-UHFFFAOYSA-K vanadium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[V+3] HQYCOEXWFMFWLR-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
Definitions
- Polymerization of the styrene in the initial step can be conducted in the presence or absence of an inert diluent at a temperature of 0250 C., preferably 60-250 C. and a pressure in a range of 0-1000 p.s.i.g. or greater, preferably 300-1000 p.s.i.g.
- the reaction time is ordinarily within the range of 0.5 to 5 hours.
- the preferred catalyst is a mixture of triethyl aluminum and vanadium trichloride.
- the graft copolymerization reaction can be carried out at temperatures similar to those employed for the pre-polymerization of the styrene.
- the preferred a-olefinic hydrocarbons graft-copolymerized onto the polystyrene are ethylene and propylene.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Description
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, 849 0.G. 1221. Identification is by serial number of the application and the heading indicates the number of pages 01! specification, including claims, and of sheets of. drawing contained in the application as originally filed. The file of this application is available to the public for inspection; reproduction may be purchased for 30 cents per sheet.
Applications published under the Defensive Publication Program have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED SEPTEMBER 16, 1969 657,707 CRYSTALLINE POLYSTYRENE GRAFT COPOLY- MERS AND THEIR PREPARATION Donald J. Shields, P.O. Box 511, Kingsport, Tenn. 37662; James E. Guillet, 31 Lagebrush Lane, Don Mills, Ontario, Canada; and Harry W. Coover, Jr., P.0. Box 511, Kingsport, Tenn. 37662 Continuation of application Ser. No. 530,352, Feb. 28, 1966, which is a continuation-in-part of application Ser. No. 791,531, Feb. 6, 1959. This application Aug. 1, 1967. Published Sept. 16, 1969 Int. Cl. C08f 19/04 N42 US. Cl. 260-878 No Drawing. 10 Pages Specification Crystallizable, homogeneous graft copolymers of styrene are produced by contacting styrene with a catalytic mixture containing trialkyl aluminum wherein the alkyl groups are of 1 to 12 carbon atoms and vanadium trihalide, prior to any substantial reaction between said trialkyl aluminum and said vanadium trihalide, to form a reaction mixture containing a living, solid polystyrene onto which a-monoolefinic hydrocarbons of up to 10 carbon atoms may be polymerized to form a graft copolymer. Polymerization of the styrene in the initial step can be conducted in the presence or absence of an inert diluent at a temperature of 0250 C., preferably 60-250 C. and a pressure in a range of 0-1000 p.s.i.g. or greater, preferably 300-1000 p.s.i.g. The reaction time is ordinarily within the range of 0.5 to 5 hours. The preferred catalyst is a mixture of triethyl aluminum and vanadium trichloride. The graft copolymerization reaction can be carried out at temperatures similar to those employed for the pre-polymerization of the styrene. The preferred a-olefinic hydrocarbons graft-copolymerized onto the polystyrene are ethylene and propylene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65770767A | 1967-08-01 | 1967-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST866013I4 true UST866013I4 (en) | 1969-09-16 |
Family
ID=24638335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US866013D Pending UST866013I4 (en) | 1967-08-01 | 1967-08-01 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST866013I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762893A (en) | 1982-07-14 | 1988-08-09 | Montedison S.P.A. | Block copolymers of olefines with vinyl aromatic monomers |
-
1967
- 1967-08-01 US US866013D patent/UST866013I4/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762893A (en) | 1982-07-14 | 1988-08-09 | Montedison S.P.A. | Block copolymers of olefines with vinyl aromatic monomers |
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