US3855353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft polymers based on ethylene copolymers
Assignee: Bayer AG
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Filing: 1973-03-26
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Granted: 1974-12-17
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Expires: 1993-03-26
Abstract
Abstract Graft polymers are obtained by graft polymerization of 10 to 95% by weight of a monomer mixture consisting of 15 to 80% by weight of (meth)acrylonitrile, 10 to 70% by weight of at least one aromatic vinyl compound, 5 to 40% by weight of at least one monoolefine and optionally further monomers on 5 to 90% by weight of an ethylene-vinyl ester copolymer having a vinyl ester content of 5 to 75% by weight in the presence of a polymerization catalyst in homogeneous or heterogeneous phase at temperatures of from -20*C and under pressure of up to 500 atm.
Inventors
- 👤 R Kuhn
- 👤 H Alberts
- 👤 H Bartl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:54
CPC Classifications
C; C08; C08F; C08F263/00; C08F263/02; C08F255/00; C08F255/02; C08F255/026
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
148 words
A PROCESS FOR THE PRODUCTION OF A GRAFT POLYMER FROM ETHYLENE-VINYL ESTER COPOLYMERS AND OLEFINICALLY UNSATURATED COMPOUNDS IN THE PRESENCE OF A RADICAL FORMER IN HOMOGENEOUS OR HETEROGENEOUS PHASE, WHEREIN A MIXTURE OF ACRYLONITRILE, METHACRYLONITRILE OR A MIXTURE THEREOF, AT LEAST ONE AROMATIC MONOVINYL COMPOUND, AT LEAST ONE MONOOLEFIN CONTAINING 2 TO 18 CARBON ATOMS, 0-30% BY WEIGHT OF ANOTHER VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID ESTERS AND METHACRYLIC ACID ESTERS WITH 1 TO 8 CARBON ATOMS IN THE ALCOHOL COMPONENT, ACRYLAMIDE, METHACRYLAMIDE, ACRYLIC ACID, METHACRYLIC ACID, VINYL ESTERS OF ORGANIC SATURATED MONOCARBOXYLIC ACIDS CONTAINING 2 TO 18 CARBON ATOMS AND MIXTURES THEREOF AND 0-15% BY WEIGHT OF AN ALLYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALLYL ALCOHOL, ALLYL ACETATE, ISOBUTENE DIACETATE AND MIXTURES THEREOF IS POLYMERIZED IN THE PRESENCE OF A COPOLYMER OF ETHYLENE WITH VINYL ESTER OF AN ORGANIC MONOCARBOXYLIC ACID.
Claim 2
Dependent Claim
148 words
A PROCESS FOR THE PRODUCTION OF A GRAFT POLYMER FROM ETHYLENE-VINYL ESTER COPOLYMERS AND OLEFINICALLY UNSATURATED COMPOUNDS IN THE PRESENCE OF A RADICAL FORMER IN HOMOGENEOUS OR HETEROGENEOUS PHASE, WHEREIN A MIXTURE OF ACRYLONITRILE, METHACRYLONITRILE OR A MIXTURE THEREOF, AT LEAST ONE AROMATIC MONOVINYL COMPOUND, AT LEAST ONE MONOOLEFIN CONTAINING 2 TO 18 CARBON ATOMS, 0-30% BY WEIGHT OF ANOTHER VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID ESTERS AND METHACRYLIC ACID ESTERS WITH 1 TO 8 CARBON ATOMS IN THE ALCOHOL COMPONENT, ACRYLAMIDE, METHACRYLAMIDE, ACRYLIC ACID, METHACRYLIC ACID, VINYL ESTERS OF ORGANIC SATURATED MONOCARBOXYLIC ACIDS CONTAINING 2 TO 18 CARBON ATOMS AND MIXTURES THEREOF AND 0-15% BY WEIGHT OF AN ALLYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALLYL ALCOHOL, ALLYL ACETATE, ISOBUTENE DIACETATE AND MIXTURES THEREOF IS POLYMERIZED IN THE PRESENCE OF A COPOLYMER OF ETHYLENE WITH VINYL ESTER OF AN ORGANIC MONOCARBOXYLIC ACID.
Claim 3
Dependent Claim
20 words
A process as claimed in claim 1, wherein propylene, 1-butene, isobutylene or mixtures thereof are used as the mono olefins.
Claim 4
Dependent Claim
24 words
A process as claimed in claim 1, wherein the organic vinyl esters are derived from organic carboxylic acids containing 1 to 18 carbon atoms.
Claim 5
Dependent Claim
36 words
A process as claimed in claim 1, wherein styrene, nuclear-substituted alkyl styrenes with 1 to 5 carbon atoms in the alkyl radical, Alpha -methylstyrene, halogen styrenes or mixtures thereof are used as the aromatic monovinyl compounds.
Claim 6
Dependent Claim
30 words
A process as claimed in claim 1, wherein from 10 to 95% by weight of monomer mixture and from 90 to 5% by weight of ethylene-vinyl ester copolymer are used.
Claim 7
Dependent Claim
81 words
The process as claimed in claim 1 wherein the monomer mixture to be grafted on consists of a mixture of I 15 to 80% by weight of said acrylonitrile, methacrylonitrile or mixture thereof, II 10 to 70% by weight of said at least one aromatic monovinyl compound, III 5 to 40% by weight of said at least one monoolefin, IV 0 to 30% by weight of said another vinyl compound, and V 0 to 15% by weight of said allyl compound.
Claim 8
Dependent Claim
111 words
A polymer consisting essentially of an ethylene-vinyl ester having grafted thereon a mixture of acrylonitrile, methacrylonitrile or a mixture thereof, at least one aromatic monovinyl compound, at least one monoolefin containing 2 to 18 carbon atoms, 0-30% by weight of another vinyl compound selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters of organic saturated monocarboxylic acids having 2 to 18 carbon atoms and mixtures thereon and 0-15% by weight of an allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 9
Dependent Claim
111 words
A polymer consisting essentially of an ethylene-vinyl ester having grafted thereon a mixture of acrylonitrile, methacrylonitrile or a mixture thereof, at least one aromatic monovinyl compound, at least one monoolefin containing 2 to 18 carbon atoms, 0-30% by weight of another vinyl compound selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters of organic saturated monocarboxylic acids having 2 to 18 carbon atoms and mixtures thereon and 0-15% by weight of an allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 10
Dependent Claim
152 words
A polymer consisting essentially of p1 A 9 to 95% by weight of ethylene-vinyl ester copolymer having grafted thereon B 91 to 5% by weight of a mixture of I 20 to 85% by weight of acrylonitrile, methacrylonitrile or a mixture thereof, II 10 to 79.9% by weight of at least one aromatic monovinyl compound, III 0.1 to 10% by weight of at least one monolefin having 2 to 18 carbon atoms, IV 0 to 20% by weight of a member selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters of organic saturated monocarboxylic acids having 2 to 18 carbon atoms and mixtures thereof and V 0 to 10% by weight of an allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 11
Dependent Claim
152 words
A polymer consisting essentially of p1 A 9 to 95% by weight of ethylene-vinyl ester copolymer having grafted thereon B 91 to 5% by weight of a mixture of I 20 to 85% by weight of acrylonitrile, methacrylonitrile or a mixture thereof, II 10 to 79.9% by weight of at least one aromatic monovinyl compound, III 0.1 to 10% by weight of at least one monolefin having 2 to 18 carbon atoms, IV 0 to 20% by weight of a member selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters of organic saturated monocarboxylic acids having 2 to 18 carbon atoms and mixtures thereof and V 0 to 10% by weight of an allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 12
Dependent Claim
167 words
A polymer consisting essentially of A 40 to 60% by weight of ethylene-vinyl acetate copolymer containing 30 to 75% by weight of built-in vinyl acetate having grafted thereon B 60 to 40% by weight of a mixture of I 20 to 85% by weight of acrylonitrile, methacrylonitrile or a mixture thereof, II 10 to 79.9% by weight of at least one aromatic monovinyl compound, III 0.1 to 10% by weight of at least one monoolefin having from 2 to 18 carbon atoms, IV 0 to 20% by weight of at least one vinyl compound selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters or organic saturated monocarboxylic acids containing 2 to 18 carbon atoms and mixtures thereof and V 0 to 10% by weight of at least one allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 13
Dependent Claim
167 words
A polymer consisting essentially of A 40 to 60% by weight of ethylene-vinyl acetate copolymer containing 30 to 75% by weight of built-in vinyl acetate having grafted thereon B 60 to 40% by weight of a mixture of I 20 to 85% by weight of acrylonitrile, methacrylonitrile or a mixture thereof, II 10 to 79.9% by weight of at least one aromatic monovinyl compound, III 0.1 to 10% by weight of at least one monoolefin having from 2 to 18 carbon atoms, IV 0 to 20% by weight of at least one vinyl compound selected from the group consisting of acrylic acid esters and methacrylic acid esters with 1 to 8 carbon atoms in the alcohol component, acrylamide, methacrylamide, acrylic acid, methacrylic acid, vinyl esters or organic saturated monocarboxylic acids containing 2 to 18 carbon atoms and mixtures thereof and V 0 to 10% by weight of at least one allyl compound selected from the group consisting of allyl alcohol, allyl acetate, isobutene diacetate and mixtures thereof.
Claim 14
Dependent Claim
19 words
The polymer as claimed in claim 9 wherein A contains 40 to 55% by weight of built-in vinyl acetate.
Claim 15
Dependent Claim
69 words
The polymer as claimed in claim 9 wherein I is present in an amount of 20 to 50% by weight, II is present in an amount of 50 to 77% by weight, III is present in an amount of 0.1 to 10% by weight, IV is present in an amount of 0 to 5% by weight and V is present in an amount of 0 to 5% by weight.
References Cited (Backward Citations)
GB917499A
Cited
US3773699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |