Silicone compositions and methods for preparing them
AssigneeMomentive Performance Materials Inc.
InventorsVikram Kumar, Mark D. Leatherman, Suresh Rajaraman, Anubhav Saxena
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Abstract
A silicone composition comprising a formula: (M1)a(D1)b(D2)c wherein M1=R1R2R3SiO1/2; D1=R4R5SiO2/2; and D2=R6R7SiO2/2; wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end- group other than an amino group; R6 comprises a monovalent poly(oxyalkyl) hydrocarbon radical; and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals; wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations: a is greater than or equal to 2; c is greater than or equal to 1; and when b=0, a+c is greater than or equal to 3 is disclosed.
Claims21
A silicone composition comprising a formula:
- (M)a(D1)b(D2)c
- wherein M=R1R2R3SiO1/2;
- D1=R4R5SiO2/2;
- and D2=R6R7SiO2/2;
- wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end-group other than an amino group;
- R6 comprises a monovalent poly(oxyalkyl) hydrocarbon radical;
- and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals;
- wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations:
- a is equal to 2;
- b has a value of 10 to 70, and c has a value of 1 to 15
- wherein the reactive end-groups are selected from the group consisting of hydroxyaromatic radicals, hvdroxycycloaliphatic radicals, carboxyaromatic radicals, carboxyaliphatic radicals, carboxycycloaliphatic radicals, epoxyaromatic radicals, epoxyaliphatic radicals, and epoxycycloaliphatic radicals.
A silicone composition comprising a formula:
- (M)a(D1)b(D2)c
- wherein M=R1R2R3SiO1/2;
- D1=R4R5SiO2/2;
- and D2=R6R7SiO2/2;
- wherein R1 is independently at each occurrence a monovalent hydrocarbon radical comprising a reactive end-group other than an amino group;
- R6 comprises a monovalent poly(oxyalkyl) hydrocarbon radical;
- and R2, R3, R4, R5, and R7 are independently monovalent hydrocarbon radicals,
- wherein a, b, and c are stoichiometric subscripts that are zero or positive subject to the following limitations:
- a is greater than or equal to 2;
- c is greater than or equal to 1;
- and when b =0, a+c is greater than or equal to 3,
- wherein R1 independently at each occurrence have a formula:
- wherein Ar1 and Ar2 are divalent aromatic radicals, W1 and W2 are each independently a divalent hydrocarbon radical having from one to sixty carbon atoms, R15, R16, and R17 are each independently a hydrogen atom or a monovalent hydrocarbon radical having 1 to 20 carbon atoms, and e1 and e2 are each independently zero or greater.
A silicone composition comprising a formula:
- (M2)h(D3)i(D4)j
- wherein M2=R22(CH3)2SiO1/2;
- D3=(CH3)2SiO2/2;
- and D4=R23R24SiO2/2;
- wherein R22 is a monovalent hydrocarbon radical comprising a reactive end-group other than an amino group;
- R23 is a monovalent poly(oxyalkyl)hydrocarbon radical;
- and R24 is a monovalent hydrocarbon radical;
- and wherein h has a value of 2;
- i has a value of 1 to 500;
- and i is greater than or equal to 1, wherein R22 is selected from the group consisting of
- combinations thereof;
- and R23 has a formula:
- wherein R24 is a hydrogen atom or a methyl radical;
- R25 is a hydrogen atom or a monovalent hydrocarbon radical;
- m has a value from 1 to 20:
- n has a value from zero to 20;
- and o has a value from zero to 20.
Dependencies are inferred from the claim text.