Patent ID: 8246859

Claim:
A process for reducing the surface energy of a thermoplastic polymer selected from polyacetals, polypropylene, polyethylene, polyether/polyurethanes, polyesters, polycarbonates and polyamides, which comprises incorporating into the thermoplastic polymer at least a compound of formula I wherein, when n is 1, R 1 is hydrogen, C 1 -C 25 alkyl, C 2 -C 25 alkenyl, —CO—R 5 , —CH(R 10 )CO—R 5 , —C(R 10 ) 2 CO—R 5 , —CO—N(R 6 )—R 7 , —CH(R 10 )CO—N(R 6 )—R 7 , —C(R 10 ) 2 CO—N(R 6 )—R 7 , —CH(R 10 )COOR 5 or —C(R 10 ) 2 CO—OR 5 ; when n is 2, R 1 is unsubstituted or with C 1 -C 4 alkyl, benzyl or phenyl substituted C 1 -C 24 alkylene; with oxygen or sulfur interrupted C 2 -C 24 alkylene; —CO—R 8 —CO—, —CH(R 10 )CO—R 8 —CO—CH(R 10 )—, —C(R 10 ) 2 CO—R 8 —CO—C(R 10 ) 2 —, —CO—N(R 6 )—R 9 —N(R 6 )—CO—, —CH(R 10 )CO—N(R 6 )—R 9 —N(R 6 )—CO—CH(R 10 )—, —C(R 10 ) 2 CO—N(R 6 )—R 9 —N(R 6 )—CO—C(R 10 ) 2 —, —CH(R 10 )CO—O—R 9 —O—CO—CH(R 10 )— or —C(R 10 ) 2 CO—O—R 9 —O—CO—C(R 10 ) 2 —; when n is 3, R 1 is R 2 , R 3 and R 4 independently of each other are hydrogen, C 1 -C 25 alkyl, C 2 -C 25 alkenyl, —CH(R 11 )—S(O) p —R 12 , with the proviso that at least one of the radicals R 2 , R 3 or R 4 is —CH(R 11 )—S(O) p —R 12 ; R 5 is C 1 -C 25 alkyl, C 2 -C 25 alkenyl, unsubstituted or with C 1 -C 4 alkyl or halogen substituted phenyl; or C 7 -C 12 phenylalkyl, R 6 is hydrogen or C 1 -C 4 alkyl, R 7 is hydrogen, C 1 -C 25 alkyl, unsubstituted or with C 1 -C 4 alkyl or halogen substituted phenyl; R 8 is phenylene, unsubstituted or with C 1 -C 4 alkyl, benzyl or phenyl substituted C 1 -C 24 alkylene; with oxygen or sulfur interrupted C 2 -C 24 alkylene; R 9 is a direct bond; unsubstituted or with C 1 -C 4 alkyl, benzyl or phenyl substituted C 2 -C 24 alkylene; or with oxygen or sulfur interrupted C 2 -C 24 alkylene; R 10 is hydrogen or C 1 -C 8 alkyl, R 11 is hydrogen, C 1 -C 8 alkyl, unsubstituted or with C 1 -C 4 alkyl substituted phenyl; R 12 is a monovalent perfluorinated alkyl or alkenyl, linear or branched organic radical having four to twenty fully fluorinated carbon atoms, R 13 is hydrogen, C 1 -C 25 alkyl, C 2 -C 25 alkenyl, —CO—R 5 , —CO—N(R 6 )—R 7 or —CH 2 —CO—N(R 6 )—R 7 , R 14 is hydrogen, C 1 -C 25 alkyl, C 2 -C 25 alkenyl or —CH(R 11 )—S(O) p —R 12 , R 15 is hydrogen, C 1 -C 25 alkyl, C 2 -C 25 alkenyl or —CH(R 11 )—S(O) p —R 12 , R 16 is unsubstituted or with C 1 -C 4 alkyl substituted methylene, —S—, —S(O)—, —S(O) 2 — or —CO—; R 17 is C 1 -C 4 alkyl, n is 1, 2 or 3, and p is 0, 1 or 2.