Patent EP0080663A2 successfully refreshed from Google Patents.
EP0080663A2
Expired / Lapsed
EP
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Vinylidene fluoride resin-based shaped product
Assignee: Kureha Corp
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Filing: 1982-11-18
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Granted: —
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Expires: 2002-11-18
Abstract
Abstract A vinylidene fluoride resin composition is obtained by mixing into a vinylidene fluoride resin a copolymer of a monomer (A) having the formula:wherein R, is H or CH<sub>3</sub>, and X<sub>1</sub> and X<sub>2</sub> are each a saturated hydrocarbon group containing from 1 to 4 carbon atoms, H or halogen, and a monomer (B) having the formulawherein R<sub>2</sub> is H or CH<sub>3</sub> and R<sub>3</sub> is a saturated hydrocarbon group containing from 1 to 5 carbon atoms. Shaped products, particularly films obtained from this composition exhibit excellent ultraviolet shielding off effect and excellent transparency.
Inventors
- 👤 Toshiya Mizuno
- 👤 Naohiro Murayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:47
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/16; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L33/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
149 words
A vinylidene fluoride resin-based shaped product of a composition comprising 100 parts by weight of a vinylidene fluoride resin and from 1 to 200 parts by weight of a copolymer comprising a monomer (A) having the formula: wherein R 1 is H or CH 3 , and X 1 and X 2 are each a saturated hydrocarbon group containing from 1 to 4 carbon atoms, H or halogen and a monomer (B) having the formula: wherein R 2 is H or CH 3 and R 3 is a saturated hydrocarbon group containing from 1 to 5 carbon atoms, the molar ratio of the monomer (A) to the monomer (B) being not more than 1, and the monomer (A) which is a constituent unit of said copolymer being present in a quantity of at least 1 x 10 -4 moles per square meter of light-receiving area of said shaped product.
Claim 2
Dependent Claim
149 words
A vinylidene fluoride resin-based shaped product of a composition comprising 100 parts by weight of a vinylidene fluoride resin and from 1 to 200 parts by weight of a copolymer comprising a monomer (A) having the formula: wherein R 1 is H or CH 3 , and X 1 and X 2 are each a saturated hydrocarbon group containing from 1 to 4 carbon atoms, H or halogen and a monomer (B) having the formula: wherein R 2 is H or CH 3 and R 3 is a saturated hydrocarbon group containing from 1 to 5 carbon atoms, the molar ratio of the monomer (A) to the monomer (B) being not more than 1, and the monomer (A) which is a constituent unit of said copolymer being present in a quantity of at least 1 x 10 -4 moles per square meter of light-receiving area of said shaped product.
Claim 3
Dependent Claim
35 words
The shaped product as claimed in claim l, wherein said copolymer is present in a quantity of from 2 to 100 parts by weight based on 100 parts by weight of said vinylidene fluoride resin.
Claim 4
Dependent Claim
34 words
The shaped product as claimed in claim 1 or 2, wherein said molar ratio of the monomer (A) to the monomer (B) in said copolymer is within the range of from 1/1000 to 1/2.
Claim 5
Dependent Claim
26 words
The shaped product as claimed in any of claims 1 through 3, wherein the number-average degree of polymerization of said copolymer is from 10 to 5000.
Claim 6
Dependent Claim
18 words
The shaped product as claimed in any of claims 1 through 3, wherein the monomer (A) is 2-(2'-hydroxy-4'-acryloxyphenyl)-5-chlorobenzotriazole.
Claim 7
Dependent Claim
19 words
The shaped product as claimed in any of claims 1 through 3, wherein the monomer (A) is 2-(2'-hydroxy-4'-methacryloxyphenyl) benzotriazole.
Claim 8
Dependent Claim
18 words
The shaped product as claimed in any of claims 1 through 3, wherein the monomer (A) is 2-(2'-hydroxy-4'-methacryloxyphenyl)-5-chlorobenzotriazole.
Claim 9
Dependent Claim
20 words
The shaped product as claimed in any of claims 1 through 7, wherein said vinylidene fluoride resin is polyvinylidene fluoride.
Claim 10
Dependent Claim
31 words
The shaped product as claimed in any of claims 1 through 8, wherein said shaped product is in the form of a film of from 2 to 500 microns in thickness.
References Cited (Backward Citations)
No citation records indexed.
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