Patent ID: 8530583

Claim:
A composition comprising compound (X) having a functional group, wherein the functional group is partially eliminated by heating, irradiation with light, irradiation with radiation, or a combination thereof, so that it generates a volatile component, and yields an unsaturated group in a remaining part, and further wherein: said compound (X) is a compound which has a Diels-Alder adduct moiety produced by Diels-Alder reaction between a conjugated diene structure and a dienophile structure, and generating the conjugated diene structure and the dienophile structure upon retro-Diels-Alder reaction caused by heating, irradiation with light, irradiation with radiation, or a combination thereof, and also has a siloxane structure, said compound (X) is a compound which is produced by Diels-Alder reaction between compound (A) having a dienophile structure and a siloxane structure as well and compound (B) having a conjugated diene structure, and releases the compound (B) having a conjugated diene structure through retro-Diels-Alder reaction caused by heating, irradiation with light, irradiation with radiation, or a combination thereof, and said compound (A) is a polymer having compound (I) as a repeating unit, and the compound (I) has m number of RSi(O 0.5 ) 3 units where m is an integer of 8 to 16, and each R is independently a hydrogen atom or a substituent, with the units sharing oxygen atoms therein to link to one another and thereby forming a cage structure, and wherein the compound (I)-derived components comprise not less than 70% by weight of the polymer.