Silicone resin-containing emulsion composition, making method, a

Details Silicone resin-containing emulsion composition, making method, a Silicone resin-containing emulsion composition, making method, a

1999-03-12

2000-11-14

Dawson, Robert

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524801, 524849, 524588, 525100, 556459, 556458, 528 10, 528501, C08F 222

Patent

active

061471569

ABSTRACT:
A silicone resin-containing emulsion composition is based on a silicone resin-containing emulsion obtained by emulsion polymerization of a mixture containing (A) a silanol group-bearing silicone resin and (B) a radical-polymerizable vinyl monomer. The silicone resin (A) contains 30-100 mol % of T units: R.sup.1 --SiZ.sub.3, and specifically 30-80 mol % of T-2 units: R.sup.1 --Si(OH)Z'.sub.2 among other T units wherein R.sup.1 is a monovalent hydrocarbon group, Z is a OH group, hydrolyzable group or siloxane residue, and Z' is a siloxane residue, and has a number average molecular weight of at least 500. The composition has a good film forming ability and cures into a flexible film having mar, weather and chemical resistance.

REFERENCES:
patent: 4642238 (1987-02-01), Lin et al.
patent: 4999249 (1991-03-01), Deschler et al.
patent: 5844060 (1998-12-01), Furuya et al.
patent: 5973068 (1999-10-01), Yamaya et al.
Chemical Abstracts: vol. 130, Abstract No. 353753 (XP002107188).

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