A method of conditioning a phonograph record comprises applying a very thin film thereto of a quaternary ammonium salt having at least one long hydrocarbon chain. Preferred compositions have the formula
wherein R1 is a hydrocarbon radical having from 8 to 22 carbon atoms, R2 is a hydrocarbon radical having 8 to 22 carbons, C1-C4 alkyl, quaternary ammonium alkylene, or benzyl, and R3 and R4 are C1-C4 alkyl or -(CH2CH20)nH, wherein n is an integer from 1 to 20, and X is a watersoluble salt-forming anion. The compound is applied by spraying small quantities of a solution containing a minor amount of the salt dissolved in a solvent on a soft applicator, and pressing the applicator against the record while the surface is moving relative to the applicator
一种调节留声机唱片的方法,包括在唱片上涂上一层非常薄的至少有一条长烃链的季
铵盐薄膜。首选的组合物如式
其中 R1 是具有 8 至 22 个碳原子的烃基,R2 是具有 8 至 22 个碳原子的烃基、C1-C4 烷基、季
铵亚烷基或苄基,R3 和 R4 是 C1-C4 烷基或-(CH2CH20)nH,其中 n 是 1 至 20 的整数,X 是
水溶性成盐阴离子。化合物的施用方法是:将少量含有溶解在溶剂中的少量盐的溶液喷洒在软涂抹器上,然后将涂抹器压在记录上,同时表面相对于涂抹器移动