US4132749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride series resin blend compositions
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1976-06-25
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Granted: 1979-01-02
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Expires: 1996-06-25
Abstract
Abstract Vinyl chloride series resin compositions comprising (a) 90 to 50 parts by weight vinyl chloride series resins and (b) 10 to 50 parts by weight of graft polymers obtained by polymerizing (i) 20 to 65 weight percent butadiene series rubber, (ii) 20 to 50 weight percent vinyl aromatic hydrocarbon, (ii) 10 to 50 weight percent methyl methacrylate, (iii) 2 to 50 weight percent acrylic ester, and (iv) 0 to 40 weight percent acrylonitrile.
Inventors
- 👤 Ichiro Saito
- 👤 Kazuo Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:33
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
175 words
Composition comprising (A) 90 to 50 parts by weight of vinyl chloride series resin selected from the group consisting of homopolymers of vinyl chloride and copolymers of above 70 percent by weight of vinyl chloride and below 30 percent by weight of other mono olefinic monomers copolymerizable therewith, blended homogeneously with (B) 10 to 50 parts by weight of graft polymer obtained by polymerizing (i) 20 to 65 weight percent of butadiene series rubber selected from the group consisting of homopolymers of butadiene and copolymers of butadiene in major proportions and other mono olefinic monomers copolymerizable therewith in minor proportions, said rubber being contained in latex, (ii) 20 to 50 weight percent of vinyl aromatic hydrocarbon, (iii) 10 to 50 weight percent of methyl methacrylate, (iv) 2 to 50 weight percent of acrylic ester but no greater than the combined weight of components (ii), (iii) and (v), and (v) 0 to less than 10 weight percent of acrylonitrile, said weight percents being based on the combined weight of components (i), (ii), (iii), (iv) and (v).
Claim 2
Dependent Claim
175 words
Composition comprising (A) 90 to 50 parts by weight of vinyl chloride series resin selected from the group consisting of homopolymers of vinyl chloride and copolymers of above 70 percent by weight of vinyl chloride and below 30 percent by weight of other mono olefinic monomers copolymerizable therewith, blended homogeneously with (B) 10 to 50 parts by weight of graft polymer obtained by polymerizing (i) 20 to 65 weight percent of butadiene series rubber selected from the group consisting of homopolymers of butadiene and copolymers of butadiene in major proportions and other mono olefinic monomers copolymerizable therewith in minor proportions, said rubber being contained in latex, (ii) 20 to 50 weight percent of vinyl aromatic hydrocarbon, (iii) 10 to 50 weight percent of methyl methacrylate, (iv) 2 to 50 weight percent of acrylic ester but no greater than the combined weight of components (ii), (iii) and (v), and (v) 0 to less than 10 weight percent of acrylonitrile, said weight percents being based on the combined weight of components (i), (ii), (iii), (iv) and (v).
Claim 3
Dependent Claim
22 words
Composition of claim 1, wherein said vinyl aromatic hydrocarbon comprises styrene, said rubber comprises polybutadiene, and said acrylic ester comprises butyl acrylate.
Claim 4
Dependent Claim
10 words
Composition of claim 1, wherein said rubber comprises styrene-butadiene copolymer.
Claim 5
Dependent Claim
11 words
Composition of claim 3, wherein said acrylic ester comprises lauryl acrylate.
Claim 6
Dependent Claim
12 words
Composition of claim 3, wherein said acrylic ester comprises 2-ethyl hexyl acrylate.
Claim 7
Dependent Claim
24 words
Composition of claim 1, wherein said vinyl aromatic hydrocarbon, methyl methacrylate, acrylic ester and acrylonitrile are first mixed together before polymerizing with said rubber.
Claim 8
Dependent Claim
23 words
Composition of claim 1, wherein said vinyl aromatic hydrocarbon, methyl methacrylate, acrylic ester and acrylonitrile are added separately during polymerization with said rubber.
Claim 9
Dependent Claim
70 words
Composition of claim 1, wherein said vinyl aromatic hydrocarbon comprises 28.6 to 57.1 percent by weight of the total mixing monomers grafted to said rubber; said methyl methacrylate comprises 14.3 to 46.5 percent by weight of said total mixing monomers; said acrylic ester comprises 3.45 to 50 percent by weight of said total mixing monomers and said acrylonitrile comprises 0 to 40 percent by weight of said total mixing monomers.
Claim 10
Dependent Claim
20 words
Composition of claim 1, wherein said acrylic ester comprises from 2 to 30 percent by weight of said graft polymer.
Claim 11
Dependent Claim
24 words
The composition of claim 1, wherein said acrylic ester is methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethyl hexyl acrylate, octyl acrylate or mixtures thereof.
Claim 12
Dependent Claim
112 words
Composition consisting essentially of (A) 90 to 50 parts by weight of vinyl chloride series resin selected from the group consisting of homopolymers of vinyl chloride and copolymers of above 70 percent by weight of vinyl chloride and below 30 percent by weight of other mono olefinic monomers copolymerizable therewith, blended homogeneously with (B) 10 to 50 parts by weight of graft polymer obtained by polymerizing components consisting essentially of (i) 20 to 65 weight percent of butadiene series rubber selected from the group consisting of homopolymers of butdiene and copolymers of butadiene in major proportions and other mono olefinic monomers copolymerizable therewith in minor proportions, said rubber being contained in latex,
Claim 13
Dependent Claim
112 words
Composition consisting essentially of (A) 90 to 50 parts by weight of vinyl chloride series resin selected from the group consisting of homopolymers of vinyl chloride and copolymers of above 70 percent by weight of vinyl chloride and below 30 percent by weight of other mono olefinic monomers copolymerizable therewith, blended homogeneously with (B) 10 to 50 parts by weight of graft polymer obtained by polymerizing components consisting essentially of (i) 20 to 65 weight percent of butadiene series rubber selected from the group consisting of homopolymers of butdiene and copolymers of butadiene in major proportions and other mono olefinic monomers copolymerizable therewith in minor proportions, said rubber being contained in latex,
Claim 14
Dependent Claim
39 words
(ii) 20 to 50 weight percent of vinyl aromatic hydrocarbon, (iii) 10 to 50 weight percent methyl methacrylate, and (iv) 2 to 50 weight percent of acrylic ester but no greater than the combined weight of components (ii), (iii).
Claim 15
Dependent Claim
39 words
(ii) 20 to 50 weight percent of vinyl aromatic hydrocarbon, (iii) 10 to 50 weight percent methyl methacrylate, and (iv) 2 to 50 weight percent of acrylic ester but no greater than the combined weight of components (ii), (iii).
Claim 16
Dependent Claim
22 words
Composition of claim 11, wherein said vinyl aromatic hydrocarbon comprises styrene, said rubber comprises polybutadiene, and said acrylic ester comprises butyl acrylate.
Claim 17
Dependent Claim
10 words
Composition of claim 11, wherein said rubber comprises styrene-butadiene copolymer.
Claim 18
Dependent Claim
11 words
Composition of claim 13, wherein said acrylic ester comprises lauryl acrylate.
Claim 19
Dependent Claim
12 words
Composition of claim 13, wherein said acrylic ester comprises 2-ethyl hexyl acrylate.
Claim 20
Dependent Claim
24 words
Composition of claim 11, wherein said vinyl aromatic hydrocarbon, methyl methacrylate, acrylic ester and acrylonitrile are first mixed together before polymerizing with said rubber.
Claim 21
Dependent Claim
21 words
Composition of claim 11, wherein said vinyl aromatic hydrocarbon, methyl methacrylate, acrylic ester are added separately during polymerization with said rubber.
Claim 22
Dependent Claim
55 words
Composition of claim 11, wherein said vinyl aromatic hydrocarbon comprises 28.6 to 57.1 percent by weight of the total mixing monomers grafted to said rubber; said methyl methacrylate comprises 14.3 to 46.5 percent by weight of said total mixing monomers; said acrylic ester comprises 3.45 to 50 percent by weight of said total mixing monomers.
Claim 23
Dependent Claim
21 words
The composition of claim 11, wherein said acrylic ester comprises from 2 to 30 percent by weight of said graft polymer.
Claim 24
Dependent Claim
23 words
Composition of claim 11, wherein said acrylic ester is methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethyl hexyl acrylate, octyl acrylate or mixtures thereof.
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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |