Aqueous silicone/(co)polymer dispersions crosslinkable into elas

Details Aqueous silicone/(co)polymer dispersions crosslinkable into elas Aqueous silicone/(co)polymer dispersions crosslinkable into elas

1990-06-18

1994-11-01

Reddick, Judy M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524156, 524161, 524375, 524378, 524401, 524405, 524413, 524423, 524425, 524430, 524431, 524432, 524437, 524442, 524449, 524450, 524451, 524506, 524588, C08K 542

Patent

active

053608518

ABSTRACT:
Aqueous silicone dispersions crosslinkable into elastomeric state on removal of water therefrom under ambient conditions, well adapted, e.g., for the production of elastomeric silicone seals in the construction industry, include an oil-in-water base emulsion (A) of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane stabilized with at least one anionic or nonionic surface-active agent, or mixture thereof, (B) an aqueous latex of an organic (co)polymer having a particle size ranging from 0.01 to 0.5 .mu.m and a solids content ranging from 20% to 70% by weight, (C) an effective crosslinking amount of at least one crosslinking agent, (D) an effective amount of at least one nonsiliceous filler material, and (E), optionally, a catalytically effective amount of a metal curing catalyst, such aqueous dispersions further having a solids content of at least 40% by weight.

REFERENCES:
patent: 4288356 (1981-09-01), Huebner et al.
patent: 4433007 (1984-02-01), Marwitz et al.
patent: 4529758 (1985-07-01), Traver
patent: 4757106 (1988-07-01), Mayer et al.
patent: 4791163 (1988-12-01), Traver et al.
patent: 4833187 (1989-05-01), Sittenthaler et al.
patent: 4978694 (1990-12-01), Vincent et al.

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