EP0356167A2
Expired / Lapsed
EP
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Weather-resistant polyacetal resin composition
Assignee: Polyplastics Co Ltd
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Filing: 1989-08-18
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Granted: —
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Expires: 2009-08-18
Abstract
Abstract A polyacetal resin composition is weather-resistant and comprises: (A) a polyacetal resin, (B) 0.01 to 5 wt. %, based on the total composition, of a weather (light) stabilizer and (C) 1 to 40 wt. %, based on the total composition, of an acrylate resin.
Inventors
- 👤 Sadatsugu Okuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:10
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/02; B23K37/0211; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; B23K37/0247; B23K9/00; B23K9/095; B23K9/0956; B23K9/10; B23K9/1087; C08L; C08L59/00; C08L33/00; C08L33/04; C08L33/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
42 words
A weather-resistant polyacetal resin composition comprising: (A) a polyacetal resin, (B) 0.01 to 5 wt. %, based on the total composition, of a weather (light) stabilizer and (C) 1 to 40 wt. %, based on the total composition, of an acrylate resin.
Claim 2
Dependent Claim
42 words
A weather-resistant polyacetal resin composition comprising: (A) a polyacetal resin, (B) 0.01 to 5 wt. %, based on the total composition, of a weather (light) stabilizer and (C) 1 to 40 wt. %, based on the total composition, of an acrylate resin.
Claim 3
Dependent Claim
35 words
A weather-resistant polyacetal resin composition according to Claim 1, wherein the weather (light) stabilizer (B) is one or more compounds selected from the group consisting of benzotriazoles, benzophenones, aromatic benzoates, cyanoacrylates, oxalanilides and hindered amines.
Claim 4
Dependent Claim
34 words
A weather-resistant polyacetal resin composition according to Claim 1 or 2, wherein the weather (light) stabilizer (B) comprises one or more of benzotriazoles, benzophenones, aromatic benzoates, cyanoacrylates and oxalanilides, and further a hindered amine.
Claim 5
Dependent Claim
32 words
A weather-resistant polyacetal resin composition according to any preceding claim, wherein the weather (light) stabiliser (B) is used in an amount of 0.02 to 3 wt %, based on the total composition.
Claim 6
Dependent Claim
27 words
A weather-resistant polyacetal resin composition according to any preceding claim, wherein the acrylate resin (C) is a methyl methacrylate homopolymer or a copolymer mainly comprising methyl methacrylate.
Claim 7
Dependent Claim
38 words
A weather-resistant polyacetal resin composition according to Claim 5, wherein the copolymer mainly comprising methyl methacrylate further comprises one or more of an acrylic ester, methacrylic ester (other than methyl methacrylate), acrylic acid, methacrylic acid, styrene or acrylonitrile.
Claim 8
Dependent Claim
29 words
A weather-resistant polyacetal resin composition according to any preceding claim, wherein the amount of the acrylate resin (c) is 3 to 20 wt %, based on the total composition.
Claim 9
Dependent Claim
27 words
A weather-resistant polyacetal resin composition according to any preceding claim, which further comprises one or more known anti-oxidants, nitrogen compounds and alkali and alkaline earth metal compounds
References Cited (Backward Citations)
No citation records indexed.
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