USE OF VULCANIZABLE COMPOSITIONS AND VULCANIZATES IN CONTACT WITH COOLANT, COMPRISING SILANE-COATED WOLLASTONITE
First Claim
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1. A process for producing a vulcanizate for use in contact with coolant, the process comprising vulcanizing a vulcanizable composition comprising:
- (a) at least one rubber,(b) at least one silane-coated wollastonite, and(c) at least one peroxide compound.
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Abstract
The present invention relates to a process for producing a vulcanizate which is in contact with coolant and to the use of a vulcanizable composition comprising rubber, silane-coated wollastonite and peroxide compound for production of vulcanizates in contact with coolant.
The invention further relates to a process for production and to the use of a vulcanizate produced from a vulcanizable composition comprising rubber, silane-coated wollastonite and peroxide compound as a component part, preferably as a seal or as a hose, in contact with coolant.
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Citations
17 Claims
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1. A process for producing a vulcanizate for use in contact with coolant, the process comprising vulcanizing a vulcanizable composition comprising:
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(a) at least one rubber, (b) at least one silane-coated wollastonite, and (c) at least one peroxide compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 16, 17)
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10. A vulcanizable composition comprising;
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(a) 100 parts by weight of hydrogenated nitrile rubber, (b) 50 to 85 parts by weight of an epoxysilane-, methacryloylsilane- or vinylsilane-coated wollastonite or mixtures thereof, and (c) 2 to 10 parts by weight of at least one peroxide compound, and the composition has a zinc ion content of less than 1.5 parts by weight based on 100 parts by weight of the rubbers (a).
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11. A component part comprising a vulcanizate usable in contact with a coolant, the vulcanizate comprising a vulcanizable composition comprising:
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(a) at least one rubber, (b) at least one silane-coated wollastonite, and (c) at least one peroxide compound. - View Dependent Claims (15)
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Specification