Acrylic compositions

Details Acrylic compositions Acrylic compositions

2007-07-31

2007-07-31

Buttner, David J. (Department: 1712)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S209000, C525S224000, C525S225000, C525S226000, C525S304000, C525S305000, C525S306000, C525S307000, C525S309000

Reexamination Certificate

active

10490355

ABSTRACT:
Acrylic compositions which can be processed into thermoformable acrylic sheet material with variegated non-homogeneous granite appearance are disclosed. The acrylic compositions comprise a matrix of polymethyl methacrylate having dispersed within it particles of a thermoplastic such as polymethyl methacrylate and one or more comonomers wherein the thermoplastic is in the shape of thin wafers 0.05 to 9.53 mm thick, 0.18 to 12.8 wide and 0.18 to 7.62 mm long.

REFERENCES:
patent: 5415931 (1995-05-01), Minghetti et al.
patent: 5480931 (1996-01-01), Hock et al.

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