Patent ID: 7709597

Claim:
A polymer composition comprising a reaction product obtained by reacting (a) a silane compound containing an amino group represented by the following formula: R 4-n —Si(OR′) n (wherein R represents an organic group containing an amino group; R′ represents methyl, ethyl or propyl; and n is an integer selected from 1 to 3) with (b) at least one boron compound selected from the group consisting of H 3 BO 3 and B 2 O 3 , wherein the components (a) and (b) are reacted in a molar ratio of component (b) to component (a) of 0.02 or larger, wherein the reaction product obtained by reacting components (a) and (b) is not prepared using a sol-gel method, and wherein the polymer composition further comprises (c) a metal oxide.