Room temperature polymerization of acrylate monomers with peroxy

Details Room temperature polymerization of acrylate monomers with peroxy Room temperature polymerization of acrylate monomers with peroxy

1982-12-06

1984-01-31

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526328, 526221, C08F 410, C08F 416

Patent

active

044290926

ABSTRACT:
A composition for preparing polymeric articles comprising: (a) an acrylic polymerizable component such as monomeric and polymeric aliphatic acrylate and methacrylate esters having a Brookfield viscosity of about 0.1-400 poise and about 5-60% by weight of solids; (b) copper and tin polymerization promoters providing in the composition about 0.05-4 ppm of Cu.sup.+2 and about 10-300 ppm of Sn.sup.+2 ; (c) about 5.times.10.sup.-6 to 1.times.10.sup.-4 mole/gm of the composition of a primary mercaptan chain transfer agent; and (d) sufficient peroxyester initiator to provide about 0.02-0.3% by weight of active oxygen in the composition. The composition is highly efficient at room temperature and provides excellent optical quality polymers while permitting a wide choice of peroxyesters as the initiator.

REFERENCES:
patent: 4230811 (1980-10-01), Ilnyckyj
patent: 4239875 (1980-12-01), Voronkova et al.
patent: 4389514 (1983-06-01), Schmidle

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