Acrylic copolymers with high heat-resistance and preparation...

Details Acrylic copolymers with high heat-resistance and preparation... Acrylic copolymers with high heat-resistance and preparation...

2009-06-15

2011-12-13

Harlan, Robert D. (Department: 1762)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S266000, C526S268000, C526S328000, C526S328500, C526S329300, C526S332000

Reexamination Certificate

active

08076435

ABSTRACT:
An acrylic copolymer with high heat-resistance is provided. The acrylic copolymer includes repeat units of a monomer of Formula (1) and repeat units of a methacrylic monomer derivative:wherein x is 1-3 and y is 0-3. The acrylic copolymer possesses high heat-resistance and low water absorptivity. The invention also provides a method for preparing the acrylic copolymer.

REFERENCES:
patent: 3135723 (1964-06-01), Vandegaer
patent: 6262214 (2001-07-01), Yanagase et al.
patent: 49-10156 (1974-01-01), None
patent: 58-5318 (1983-01-01), None
patent: 58-13652 (1983-01-01), None
patent: 61-64703 (1986-04-01), None
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patent: 63-30510 (1988-02-01), None
patent: H10-298237 (1998-11-01), None
First examination opinion notification issued by the China Intellectual Property Office on Mar. 30, 2011,for the referenced application's counterpart application in China (Application No. 200910007983.0).

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