US3880951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer and graft blend each containing acrylonitrile and acrylate components
Assignee: Kureha Corp
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Filing: 1972-03-17
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Granted: 1975-04-29
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Expires: 1992-03-17
Abstract
Abstract Synthetic resin composition having low gas permeability consisting of a blend of a first resin component which is a copolymer of acrylonitrile or methacrylonitrile and acrylic ester, and a second resin component which is a graft copolymer composed of a monomer mixture of acrylonitrile or methacrylonitrile and acrylic ester grafted upon homopolymer or copolymer of 1,3-butadiene as the trunk polymer for the graft copolymer, the content of the trunk polymer in the entire blend being determined to attain the desired result.
Inventors
- 👤 Masaki Ooya
- 👤 Masayasu Suzuki
- 👤 Akio Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:34
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S525/00; Y10S525/932; Y10S525/933
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
245 words
A SYNTHETIC RESIN COMPOSITION OF LOW GAS PERMEABILITY, CONSISTING ESSENTIALLY OF A BLEND OF A FIRST RESIN COMPONENT AND A SECOND RESIN COMPONENT, WHEREIN THE FIRST RESIN COMPONENT IS A COPOLYMER CONSISTING ESSENTIALLY OF 1. 50 TO 85% BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, AND 2. 15 TO 50% BY WEIGHT OF AN ACRYLIC ESTER REPRESENTED BY THE FORMULA CH2 = CHCOOR1 WHEREIN R1 IS ALKYL OF 1 TO 4 CARBON ATOMS, AND THE SECOND RESIN COMPONENT IS A GRAFT COPOLYMER CONSISTING ESSENTIALLY OF 90 TO 25 PARTS BY WEIGHT OF A MONOMER MIXTURE CONSISTING ESSENTIALLY OF 1. 40 TO 85% BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, AND 2. 60 TO 15% BY WEIGHT OF AN ACRYLIC ESTER REPRESENTED BY THE FORMULA CH2 = CHCOOR1 WHEREIN R1 IS ALKYL OF 1 TO 4 CARBON ATOMS GRAFTED UPON 10 TO 75 PARTS BY WEIGHT OF A POLYMERIC SUBSTANCE TO BE THE TRUNK POLYMER FOR GRAFT COPOLYMER, WHICH POLYMERIC SUBSTANCE IS A COPOLYMER OF 3. 50 TO 90% BY WEIGHT OF 1,3-BUTADIENE, AND 4. 10 TO 50% BY WEIGHT OF AT LEAST ONE VINYL MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYL METHACRYLATE AND ESTERS OF ACRYLIC ACID WHEREIN THE ALCOHOL RADICAL HAS 1-8 CARBON ATOMS, THE CONTENT OF THE TRUNK POLYMER IN THE SECOND RESIN COMPONENT BEING FROM 5 TO 20% BY WEIGHT OF THE ENTIRE BLENDED RESIN COMPOSITION.
Claim 2
Dependent Claim
245 words
A SYNTHETIC RESIN COMPOSITION OF LOW GAS PERMEABILITY, CONSISTING ESSENTIALLY OF A BLEND OF A FIRST RESIN COMPONENT AND A SECOND RESIN COMPONENT, WHEREIN THE FIRST RESIN COMPONENT IS A COPOLYMER CONSISTING ESSENTIALLY OF 1. 50 TO 85% BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, AND 2. 15 TO 50% BY WEIGHT OF AN ACRYLIC ESTER REPRESENTED BY THE FORMULA CH2 = CHCOOR1 WHEREIN R1 IS ALKYL OF 1 TO 4 CARBON ATOMS, AND THE SECOND RESIN COMPONENT IS A GRAFT COPOLYMER CONSISTING ESSENTIALLY OF 90 TO 25 PARTS BY WEIGHT OF A MONOMER MIXTURE CONSISTING ESSENTIALLY OF 1. 40 TO 85% BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, AND 2. 60 TO 15% BY WEIGHT OF AN ACRYLIC ESTER REPRESENTED BY THE FORMULA CH2 = CHCOOR1 WHEREIN R1 IS ALKYL OF 1 TO 4 CARBON ATOMS GRAFTED UPON 10 TO 75 PARTS BY WEIGHT OF A POLYMERIC SUBSTANCE TO BE THE TRUNK POLYMER FOR GRAFT COPOLYMER, WHICH POLYMERIC SUBSTANCE IS A COPOLYMER OF 3. 50 TO 90% BY WEIGHT OF 1,3-BUTADIENE, AND 4. 10 TO 50% BY WEIGHT OF AT LEAST ONE VINYL MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYL METHACRYLATE AND ESTERS OF ACRYLIC ACID WHEREIN THE ALCOHOL RADICAL HAS 1-8 CARBON ATOMS, THE CONTENT OF THE TRUNK POLYMER IN THE SECOND RESIN COMPONENT BEING FROM 5 TO 20% BY WEIGHT OF THE ENTIRE BLENDED RESIN COMPOSITION.
Claim 3
Dependent Claim
50 words
15 to 50% by weight of an acrylic ester represented by the formula CH2 CHCOOR1 wherein R1 is alkyl of 1 to 4 carbon atoms, and the second resin component is a graft copolymer consisting essentially of 90 to 25 parts by weight of a monomer mixture consisting essentially of
Claim 4
Dependent Claim
50 words
15 to 50% by weight of an acrylic ester represented by the formula CH2 CHCOOR1 wherein R1 is alkyl of 1 to 4 carbon atoms, and the second resin component is a graft copolymer consisting essentially of 90 to 25 parts by weight of a monomer mixture consisting essentially of
Claim 5
Dependent Claim
53 words
60 to 15% by weight of an acrylic ester represented by the formula CH2 CHCOOR1 wherein R1 is alkyl of 1 to 4 carbon atoms grafted upon 10 to 75 parts by weight of a polymeric substance to be the trunk polymer for the graft copolymer, which polymeric substance is a copolymer of
Claim 6
Dependent Claim
53 words
60 to 15% by weight of an acrylic ester represented by the formula CH2 CHCOOR1 wherein R1 is alkyl of 1 to 4 carbon atoms grafted upon 10 to 75 parts by weight of a polymeric substance to be the trunk polymer for the graft copolymer, which polymeric substance is a copolymer of
Claim 7
Dependent Claim
33 words
The synthetic resin composition according to claim 1, wherein the acrylic ester for the first resin component is selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate and butyl acrylate.
Claim 8
Dependent Claim
34 words
The synthetic resin composition according to claim 1, wherein the acrylic ester (2) for the second resin component is selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate and butyl acrylate.
Claim 9
Dependent Claim
8 words
50 to 90% by weight of 1,3-butadiene, and
Claim 10
Dependent Claim
8 words
50 to 90% by weight of 1,3-butadiene, and
Claim 11
Dependent Claim
57 words
10 to 50% by weight of at least one vinyl monomer selected from the group consisting of styrene, methyl methacrylate and esters of acrylic acid wherein the alcohol radical has 1-8 carbon atoms, the content of the trunk polymer in the second resin component being from 5 to 20% by weight of the entire blended resin composition.
Claim 12
Dependent Claim
57 words
10 to 50% by weight of at least one vinyl monomer selected from the group consisting of styrene, methyl methacrylate and esters of acrylic acid wherein the alcohol radical has 1-8 carbon atoms, the content of the trunk polymer in the second resin component being from 5 to 20% by weight of the entire blended resin composition.
Claim 13
Dependent Claim
38 words
The synthetic resin composition according to claim 1, wherein the acrylic ester of the polymeric substance for the trunk polymer is selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate and methyl methacrylate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |