Polyester-silicone copolymer and coating composition using the same
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsIchiro Ono, Shinji Miyadai
Life of this patent
Estimating the term…
Abstract
Disclosed are a polyester-silicone copolymer which comprises a polyester part containing naphthalene rings and a dimethylpolysiloxane part and has a glass transition temperature of at least 60.degree. C., and a coating composition containing as a main component the aforesaid polyester-silicone copolymer.
Claims10
A polyester-silicone copolymer having a glass transition temperature of at least 60.degree. C., comprising a polyester part containing naphthalene rings in its skeleton and a dimethylpolysiloxane part having the following structural formula II ##STR16## wherein n is a natural number lying in the range 3-100, R.sup.2 is a monovalent hydrocarbon group having 1-4 carbon atoms and A is an organic group to which the polyester part is attached.
Dependencies are inferred from the claim text.