Low density hydrocarbon polymer foam
AssigneeDow Corning Corporation
InventorsIrene Qian Li, Toshio Suzuki
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Abstract
There is disclosed a composition which, when cured, results in a foamed product having a low bulk density, said composition comprising: (A) 100 parts by weight of a saturated hydrocarbon polymer containing at least 1.5 alkenyl groups per molecule; (B) 5 to 20 parts by weight of a silicone crosslinker comprising an average of 7 to 50 organohydrogensiloxane units; (C) 1 to 20 parts by weight of water; (D) at least one component selected from the group consisting of (D') 0.1 to 20 parts by weight of an alcohol having 1 to 12 carbon atoms and (D") 5 to 30 parts by weight of a hydrocarbon liquid having a normal boiling point below 100.degree. C.; and (E) a sufficient amount of a hydrosilation catalyst to promote crosslinking of said polymer by said crosslinker.
Claims12
A composition comprising:
- (A) 100 parts by weight of a saturated hydrocarbon polymer containing at least 1.5 alkenyl groups per molecule;
- (B) 5 to 20 parts by weight of a silicone crosslinker comprising an average of 7 to 50 organohydrogensiloxane units;
- (C) 1 to 20 parts by weight of water;
- (D) at least one component selected from the group consisting of
- (D') 0.1 to 20 parts by weight of an alcohol having 1 to 12 carbon atoms and
- (D") 5 to 30 parts by weight of a hydrocarbon liquid having a normal boiling point
- below 100.degree. C.;
- and
- (E) a sufficient amount of a hydrosilation catalyst to promote crosslinking of said polymer by said crosslinker.
A foamed product having a density of 192 kg/m.sup.3 or less, said product being prepared by reacting
- (A) 100 parts by weight of a saturated hydrocarbon polymer containing at least 1.5 alkenyl groups per molecule;
- (B) 5 to 20 parts by weight of a silicone crosslinker comprising an average of 7 to 50 organohydrogensiloxane units;
- (C) 1 to 20 parts by weight of water;
- (D) at least one component selected from the group consisting of
- (D') 0.1 to 20 parts by weight of an alcohol having 1 to 12 carbon atoms and
- (D") 5 to 30 parts by weight of a hydrocarbon liquid having a normal boiling point
- below 100.degree. C.;
- and
- (E) a sufficient amount of a hydrosilation catalyst to promote crosslinking of said polymer by said crosslinker.
Dependencies are inferred from the claim text.