A polysiloxane composition which is curable by condensation, contains at least one hydroxyl-terminated polyorganosiloxane, at least one diacetoxysilane optionally bearing an alkoxy group, at least one multifunctional alkoxysilane, at least one filler, and at least one catalyst.

A polysiloxane composition which is curable by condensation, contains at least one hydroxyl-terminated polyorganosiloxane, at least one diacetoxysilane optionally bearing an alkoxy group, at least one multifunctional alkoxysilane, at least one filler, and at least one catalyst.

A polysiloxane composition which is curable by condensation, contains at least one hydroxyl-terminated polyorganosiloxane, at least one diacetoxysilane optionally bearing an alkoxy group, at least one multifunctional alkoxysilane, at least one filler, and at least one catalyst.

A method of producing an adhesive resin includes: a heating and kneading step of kneading a mixture containing a ring structure-containing hydrocarbon resin, an adhesive functional group-containing compound, and a peroxide while heating the mixture to obtain a heated and kneaded product; and a cooling and kneading step, performed in succession to the heating and kneading step, of kneading the heated and kneaded product while cooling the heated and kneaded product to obtain a cooled and kneaded product. The adhesive resin has a yellowness index (Yi) of 3.0 or less when 0.8 parts by mass of 2-(5-chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol is added to 100 parts by mass of the adhesive resin.

A method of producing an adhesive resin includes: a heating and kneading step of kneading a mixture containing a ring structure-containing hydrocarbon resin, an adhesive functional group-containing compound, and a peroxide while heating the mixture to obtain a heated and kneaded product; and a cooling and kneading step, performed in succession to the heating and kneading step, of kneading the heated and kneaded product while cooling the heated and kneaded product to obtain a cooled and kneaded product. The adhesive resin has a yellowness index (Yi) of 3.0 or less when 0.8 parts by mass of 2-(5-chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol is added to 100 parts by mass of the adhesive resin.

A moisture curable polyorganosiloxane composition is disclosed. The composition comprises: (A) a polyorganosiloxane endblocked with alkoxysilyl-containing groups at both molecular terminals; (B) a polyorganosiloxane resin having a content of OZ in a range of from about 50 mol % to about 150 mol %, wherein each Z is H or an alkyl group such that OZ represents a silanol group and/or a silicon atom-bonded alkoxy group; and (C) a polyorganosiloxane resin having an alkoxysilyl-containing group. The composition exhibits good to excellent coating performance without using a solvent. In addition, the composition can cure by contacting moisture in air to form a cured product exhibiting good to excellent mechanical properties.

A moisture curable polyorganosiloxane composition is disclosed. The composition comprises: (A) a polyorganosiloxane endblocked with alkoxysilyl-containing groups at both molecular terminals; (B) a polyorganosiloxane resin having a content of OZ in a range of from about 50 mol % to about 150 mol %, wherein each Z is H or an alkyl group such that OZ represents a silanol group and/or a silicon atom-bonded alkoxy group; and (C) a polyorganosiloxane resin having an alkoxysilyl-containing group. The composition exhibits good to excellent coating performance without using a solvent. In addition, the composition can cure by contacting moisture in air to form a cured product exhibiting good to excellent mechanical properties.

Techniques regarding chemical compounds comprising perfluoroaryl groups that can facilitate post-synthesis functionalization are provided. For example, one or more embodiments described herein can comprise a chemical compound. The chemical compound can comprise a molecular backbone. The chemical compound can also comprise a pendent functional group bonded to the molecular backbone. The pendent functional group can comprise a perfluoroaryl group and a methylene group.

Techniques regarding chemical compounds comprising perfluoroaryl groups that can facilitate post-synthesis functionalization are provided. For example, one or more embodiments described herein can comprise a chemical compound. The chemical compound can comprise a molecular backbone. The chemical compound can also comprise a pendent functional group bonded to the molecular backbone. The pendent functional group can comprise a perfluoroaryl group and a methylene group.

Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.