Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1986-12-30
1988-11-22
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526296, 526309, 526313, C08F21612
Patent
active
047867000
ABSTRACT:
Homogeneous thermosetting copolymers comprising a mixture of styrene-terminated tetrakisphenols and compounds containing at least one pendant vinyl group as exemplified by styrene-terminated tetrakisphenol ethane and styrene-terminated bisphenol A will possess desirable characteristics such as low dielectric constants and high glass transition temperatures. These polymers may be utilized as a component in laminates or circuit boards which are employed in relatively complicated pieces of electronic equipment.
REFERENCES:
patent: 4116936 (1978-09-01), Steiner
Wrezel James A.
Zupancic Joseph J.
Zweig Andrew M.
Allied-Signal Inc.
Friedenson Jay P.
Henderson Christopher
Nelson Raymond H.
Wells Harold N.
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