Internal mold release compositions
Internal mold release systems that include an internal mold release agent that includes any one of fatty acids, fatty acid esters and metal carboxylates, and employ a poly(dimethylsiloxane) surfactant with the following formula: (CH 3 ) 3 Si-O-[(CH 3 ) 2 Si-O-] n -[CH 3 -Si(R)-O-] m -Si(CH 3 ) 3 whe...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Internal mold release systems that include an internal mold release agent that includes any one of fatty acids, fatty acid esters and metal carboxylates, and employ a poly(dimethylsiloxane) surfactant with the following formula:
(CH
3
)
3
Si-O-[(CH
3
)
2
Si-O-]
n
-[CH
3
-Si(R)-O-]
m
-Si(CH
3
)
3
wherein,
R=-(CH
2
)
3
-O-[EO]
x
-R′;
R′ is H; C
1
to C
20
alkyl; or C
6
to C
25
aryl;
x is a number from greater than 1 up to about 24;
m is a number from 1 to about 25; and
n is a number from 0 to about 100.
Isocyanate compositions, isocyanate reactive compositions and polyurethane reaction systems that employ the surfactant also are disclosed. |
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