Solvent resistent acrylic resin and process for producing the sa

Details Solvent resistent acrylic resin and process for producing the sa Solvent resistent acrylic resin and process for producing the sa

1978-11-06

1981-01-20

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 78, 526 82, 526222, 526224, 5263285, 5263297, C08F 238, C08F 2014

Patent

active

042463823

ABSTRACT:
An acrylic resin having resistance to crazing or crack formation when brought into contact with an organic solvent may be prepared by polymerizing or copolymerizing a monomer or monomers comprising (1) 50 to 100 wt. % of methyl methacrylate and (2) 0 to 50 wt. % of at least one monomer selected from the group consisting of an acrylic ester and a methacrylic acid ester, and adding a chain transfer agent after initiation and prior to completion of the polymerization. The acrylic resins have an intrinsic viscosity of 0.028 to 0.117 liters per gram, and a ratio of weight-average molecular weight to number-average molecular weight of 2.3 to 6.0.

REFERENCES:
patent: 3198775 (1965-08-01), DeLacretaz et al.
patent: 3272786 (1966-09-01), Perry
patent: 3960824 (1976-06-01), Hicks
patent: 4145494 (1979-03-01), Neubert

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