Polysiloxane-polylactone block copolymers
First Claim
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1. A method of producing polymer blends having modified surface properties, comprising the step of polymerizing monomer starting materials for a first polymer in the presence of a linear polysiloxane-polylactone second polymer having the formula:
- ##STR8## wherein n is an integer from 1 to about 200;
R1, R2, R3, and R4 are independently linear or branched alkyl, alkenyl, haloalkyl, or haloalkenyl of 1 to 6 carbon atoms;
aryl of 5 to 7 carbon atoms;
aralkyl of 6 to 8 carbon atoms;
A and A'"'"' are independently ##STR9## p is an integer from 0 to 6;
m is an integer from 1 to about 250;
R6 is hydrogen or linear or branched alkyl or 1 to 6 carbon atoms;
R5 '"'"' is --R7 --O--, --R7 --NR8 --, ##STR10## R5 is --O--R7 --, --NR8 --R7 --;
##STR11## R7, R9 and R11, are independently --CH2 .sbsb.q, q is an integer from 1 to 20;
##STR12## where r, t and w are independently integers from 1 to 6 and v is an integer from 1 to about 100;
R8, and R10 are independently hydrogen or alkyl of 1 to 6 carbon atoms.
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Abstract
Novel linear polysiloxane-polyacetone block copolymers are useful as surface modifying additives due in part to their miscibility with a wide variety of base polymers. A particularly preferred polysiloxane-polycaprolactone linear blocked copolymer is miscible with nylon and is useful for forming surface modified nylon products.
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16 Claims
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1. A method of producing polymer blends having modified surface properties, comprising the step of polymerizing monomer starting materials for a first polymer in the presence of a linear polysiloxane-polylactone second polymer having the formula:
- ##STR8## wherein n is an integer from 1 to about 200;
R1, R2, R3, and R4 are independently linear or branched alkyl, alkenyl, haloalkyl, or haloalkenyl of 1 to 6 carbon atoms;
aryl of 5 to 7 carbon atoms;
aralkyl of 6 to 8 carbon atoms;A and A'"'"' are independently ##STR9## p is an integer from 0 to 6;
m is an integer from 1 to about 250;
R6 is hydrogen or linear or branched alkyl or 1 to 6 carbon atoms;R5 '"'"' is --R7 --O--, --R7 --NR8 --, ##STR10## R5 is --O--R7 --, --NR8 --R7 --;
##STR11## R7, R9 and R11, are independently --CH2 .sbsb.q, q is an integer from 1 to 20;
##STR12## where r, t and w are independently integers from 1 to 6 and v is an integer from 1 to about 100;R8, and R10 are independently hydrogen or alkyl of 1 to 6 carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16)
- ##STR8## wherein n is an integer from 1 to about 200;
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10. A method of producing modified polymers having modified surface properties, comprising the step of polymerizing monomer starting materials for a first polymer in the presence of a linear polysiloxane-polyactone second polymer having the formula:
- ##STR13## wherein n is an integer from 1 to about 200;
R1, R2, R3 and R4 are independently linear or branched alkyl, alkenyl, haloalkyl, or haloalkenyl of 1 to 6 carbon atoms;
aryl of 5 to 7 carbon atoms;
aralkyl of 6 to 8 carbon atoms;A and A'"'"' are independently ##STR14## p is an integer from 0 to 6, m is an integer from 1 to about 250;
R6 is hydrogen or linear or branched alkyl of 1 to 6 carbon atoms;R5 '"'"' is ##STR15## R5 is ##STR16## R7, R9 and R11, are independently --CH2 --.sbsb.q, q is an integer from 1 to 20;
##STR17## where r, t and w are independently integers from 1 to 6 and v is an integer from 1 to about 100;R8 and R10 are independently hydrogen or alkyl of 1 to 6 carbon atoms, whereby said polysiloxane-polyactone second polymer is chemically linked to said first polymer by urethane, urea linking groups or by ester linking groups. - View Dependent Claims (11, 12, 13, 14)
- ##STR13## wherein n is an integer from 1 to about 200;
Specification