Patent ID: 8735264

Claim:
A temporary adhesive composition comprising: (A) non-aromatic saturated hydrocarbon group-containing organopolysiloxane; (B) an antioxidant; and (C) an organic solvent, wherein the component (A) corresponds to 100 parts by mass, the component (B) corresponds to 0.5 to 5 parts by mass, and the component (C) corresponds to 10 to 1000 parts by mass, and wherein the non-aromatic saturated hydrocarbon group-containing organopolysiloxane of the component (A) is organopolysiloxane (A-1) that has a weight average molecular weight of 2,000 to 60,000, is insoluble in a polar solvent having an SP value higher than 9, and contains units represented by the following (I) to (III) or organopolysiloxane (A-2) obtained by increasing a molecular weight using the organopolysiloxane (A-1) as a starting material: (I) a siloxane unit represented by R 1 SiO- 3/2 (a T unit): 50 to 99 mole %; (II) a siloxane unit represented by R 2 R 3 SiO 2/2 (a D unit): 0 to 49 mole %; and (III) a siloxane unit represented by R 4 3 SiO 1/2 (an M unit): 1 to 15 mole %, wherein each of R 1 to R 4 represents a monovalent organic group, 50 to 80 mole % in all organic groups represented by R 1 to R 3 represent the same or different non-aromatic saturated hydrocarbon groups including one of the following cyclic structures, and 10 to 40 mole % are the same or different substituted or unsubstituted monovalent acyclic saturated hydrocarbon groups each having a carbon number of 6 to 15, and further, groups other than the cyclic or acyclic saturated hydrocarbon groups in all organic groups represented by R 1 to R 4 represent the same or different substituted or unsubstituted monovalent hydrocarbon groups each having a carbon number of 1 to 7