Impact modified acrylics having a bimodal distribution of...

Details Impact modified acrylics having a bimodal distribution of... Impact modified acrylics having a bimodal distribution of...

2011-03-29

2011-03-29

Nutter, Nathan M (Department: 1765)

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

Synthetic resins

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

C525S221000, C525S222000, C525S238000, C525S239000, C525S241000

Reexamination Certificate

active

07915346

ABSTRACT:
The invention relates to an impact modified acrylic sheet composition having a bimodal distribution of impact modifier particle sizes. The composition provides an optimal balance of impact performance and appearance after melt processing.

REFERENCES:
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patent: 5367021 (1994-11-01), Roovers et al.
patent: 5985997 (1999-11-01), Bowen et al.
patent: 6323282 (2001-11-01), Demirors et al.
patent: 6441090 (2002-08-01), Demirors et al.
patent: 6660808 (2003-12-01), Kim
patent: 6884844 (2005-04-01), Hamilton et al.
Article: “Rubber Toughening of PMMA, Part II: Effect of a Twin Population of Particle Size” Polymer Engineering and Science, Feb. 1991, vol. 31, No. 4.

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