Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1999-01-22
1999-12-07
Geist, Gary
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
5253263, 525350, 528374, 528376, C08G 7502
Patent
active
05998564&
ABSTRACT:
2.2'-bis(3-mercaptophenyl)hexafluoropropane [bisthio-phenol AF] is obtained in good yield by chlorosulfonating 2.2'-bisphenylhexafluoropropane and reducing the thus quantitatively obtained 2,2'-bis(3-chlorosulfonylphenyl)-hexafluoropropane with zinc under acidic conditions and is effectively used as a cross-linking agent for a fluorine-containing elastomer having halogenophenyl groups as cross-linkable groups.
REFERENCES:
patent: 4062830 (1977-12-01), Ceccato
patent: 4259463 (1981-03-01), Moggi
patent: 4562243 (1985-12-01), Percec
patent: 4720590 (1988-01-01), Giants
Cherstokov Victor Filippovich
Delyagina Nina Ivanovna
Saito Satoru
Sonoi Takehiro
Sterlin Sergei Rafailovich
Geist Gary
Nippon Mektron Limited
Vollano Jean F
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