Methacrylic resin composition

Details Methacrylic resin composition Methacrylic resin composition

2011-08-16

2011-08-16

Wu, David (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C428S327000, C428S515000, C428S520000, C524S556000, C524S550000, C525S221000, C525S222000, C525S227000, C525S228000

Reexamination Certificate

active

07999032

ABSTRACT:
An acrylic resin composition suitable for use as films excellent in transparency, weatherability, hardness, impact resistance, flex cracking resistance, and formability. The resin composition comprises an acrylic graft copolymer (A) including a rubbery acrylic ester polymer (A-a) and a methacrylic polymer (B) comprising 80 wt. % or more methyl methacrylate units, the acrylic resin composition having a specific value of reduced viscosity (0.2-0.8 dl/g), specific values of content (5-45 wt. %) and average particle diameter (50-200 nm) of the rubbery polymer (A-a), a specific relationship between the particle diameter and the crosslinking agent amount (0.02d≦w≦0.05d; d, average particle diameter (nm); w, amount of crosslinking agent (wt. %)), and a specific value of the degree of grafting (50-250%). The resin composition contains an ultraviolet absorber incorporated therein through copolymerization.

REFERENCES:
patent: 6387497 (2002-05-01), Nishida et al.
patent: 6476148 (2002-11-01), Gross
patent: 6509097 (2003-01-01), Hatakeyama et al.
patent: 2007/0212561 (2007-09-01), Wada et al.
patent: 2075216 (1992-03-01), None
patent: 4125857 (1993-02-01), None
patent: 0 131 468 (1985-01-01), None
patent: 1041095 (2000-10-01), None
patent: 60-38411 (1985-02-01), None
patent: 05-255447 (1993-10-01), None
patent: 8-319326 (1996-12-01), None
patent: 09-194542 (1997-07-01), None
patent: 9-194542 (1997-07-01), None
patent: 2004-105502 (2004-03-01), None
patent: WO 2005/095478 (2005-10-01), None
International Search Report of PCT/JP2006/313390, date of mailing Sep. 12, 2006.
European Search Report dated Feb. 26, 2009, issued in corresponding European Patent Application No. 06767896.
Office Action issued on Nov. 18, 2009 in corresponding European Patent Application 06767896.1.

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