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US 6,887,949 B2Granted
Star-branched silicone polymers as anti-mist additives for coating applications
AssigneeGeneral Electric Company
InventorsJohn Alfred Kilgour, Edwin C. Cua, John A. Cummings
Life of this patent
Estimating the term…
Abstract
A hydrido-silicone is incompletely reacted with (preferably) a long chain olefin under hydrosilylation conditions to produce a partially substituted hydrido-silicone that is further reacted under hydrosilylation conditions with a vinyl containing MQ resin to partially consume the remaining hydride species which is then reacted under hydrosilylation conditions to consume the remaining hydride species with a long chain di- or multi-alkenyl silicone to produce a composition that is useful as an anti-mist agent in the coating of flexible supports.
Claims30
A composition comprising the hydrosilylation reaction product of:
- compound A+α(MαMViβDγDViδTφTViλ)
- where the subscripts α, β, γ, δ, φ, and λ are zero or positive and β+δ+λ≧2, and the stoichiometric coefficient α has a value of such that ((β+δ+λ)/((b+d+f)−(g+h+i)−(k+m+o))) is 0.01 to 10 where Compound A is the reaction product of:
- M′gMaMHb−gDcD′hDHd−hTeT′iTHf−i and ((MjMVikDlDVimTnTVio)pQ)q,
- in the presence of a noble metal hydrosilylation catalyst where the subscripts a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, are zero or positive and q is non-zero and positive, for mixtures of compounds the average values of each of the subscripts will most likely be non-integral, for specific compounds the subscripts will be integral, with k+m+o<b+d+f−g−h−i, p ranges from 0.4 to 4.0 and q ranges from 1 to 200, the ratio (b+d+f−g−h−i)/(((k+m+o)p)q) ranges from 50.0 to 0.01 and where the compounds:
- M′gMaMHb−gDcD′hDHd−hTeT′iTHf−i
- is the hydrosilylation product of the following reaction:
- MaMHbDcDHdTeTHf+βCH2═CHR1→M′gMaMHb−gDcD′hDHd−hTeT′iTHf−i
- where the stoichiometric coefficient β satisfies the following relationship:
- β+1≦b+d+f and b+d+f−g−h−i>0 with 1.5≦b+d+f≦100;
- 2≦a+b≦12;
- 0≦c+d≦1000;
- 0≦e+f≦10 and R1 is a monovalent radical selected from the group consisting of halogens, hydrogen, C1 to C60 monovalent hydrocarbon radicals, C1 to C60 monovalent polyester radicals, C1 to C60 monovalent nitrile radicals, C1 to C60 monovalent alkyl halide radicals and C1 to C60 monovalent polyether radicals and mixtures thereof;
- with
- M=R2R3R4SiO1/2;
- MH=HR5R6SiO1/2;
- MVi=RViR5R6SiO1/2;
- D=R7R8SiO2/2;
- DH=HR9SiO2/2;
- DVi=RViR10SiO2/2;
- T=R11SiO3/2;
- TH=HSiO3/2;
- TVi=RViSiO3/2;
- Q=SiO4/2;
- M′=(CH2CH2R1)R5R6SiO1/2;
- D′=(CH2CH2R1)R9SiO2/2;
- and
- T′=(CH2CH2R1)SiO3/2
- with each R2, R3, R4, R5, R6, R7, R8, R9, R10, and R11 independently selected for each molecular species from the group of C1 to C60 monovalent hydrocarbon radicals and each RVi independently selected from the group of C2 to C60 monovalent alkenyl hydrocarbon radicals wherein said composition comprises a star branched siloxane compound.
25 more elements
A composition to reduce misting during the coating of flexible supports comprising the hydrosilylation reaction product of compound A+α(MαMViβDγDViδTφTViλ)
- where the subscripts α, β, γ, δ, φ, and λ are zero or positive and β+δ+λ≧2, and the stoichiometric coefficient α has a value of such that ((β+δ+λ)/((b+d+f)−(g+h+i)−(k+m+o))) is 0.01 to 10 where Compound A is the reaction product of:
- M′gMaMHb−gDcD′hDHd−hTeT′iTHf−i and ((MjMVikDlDVimTnTVio)pQ)q,
- in the presence of a noble metal hydrosilylation catalyst where the subscripts a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, are zero or positive and q is non-zero and positive, for mixtures of compounds the average values of each of the subscripts will most likely be non-integral, for specific compounds the subscripts will be integral, with k+m+o<b+d+f−g−h−i, p ranges from 0.4 to 4.0 and q ranegs from 1 to 200, the ratio (b+d+f−g−h−i)/(((k+m+o)p)q) ranges from 50.0 to 0.01 and where the compound:
- M′gMaMHb−gDcD′hDHd−hTeT′iTHf−i
- is the hydrosilylation product of the following reaction:
- MaMHbDcDHdTeTHf+βCH2═CHR1→M′gMaMH b−gDcD′hDHd−hTeT′iTHf−i
- where the stoichiometric coefficient β satisfies the following relationship:
- β+1≦b+d+f and b+d+f−g−h−i>0 with 1.5≦b+d+f≦100;
- 2≦a+b≦12;
- 0≦c+d≦1000;
- 0≦e+f≦10 and R1 is a monovalent radical selected from the group consisting of halogens, hydrogen, C1 to C60 monovalent hydrocarbon radicals, C1 to C60 monovalent polyester radicals, C1 to C60 monovalent nitrile radicals, C1 to C60 monovalent alkyl halide radicals and C1 to C60 monovalent polyether radicals and mixtures thereof;
- with
- M=R2R3R4SiO1/2;
- MH=HR5R6SiO1/2;
- MVi=RViR5R6SiO1/2;
- D=R7R8SiO2/2;
- DH=HR9SiO2/2;
- DVi=RViR10SiO2/2;
- T=R11SiO3/2;
- TH=HSiO3/2;
- TVi=RViSiO3/2;
- Q=SiO4/2;
- M′=(CH2CH2R1)R5R6SiO1/2;
- D′=(CH2CH2R1)R9SiO2/2;
- and
- T′=(CH2CH2R1)SiO3/2
- with each R2, R3, R4, R5, R6, R7, R8, R9, R10, and R11 independently selected for each molecular species from the group of C1 to C60 monovalent hydrocarbon radicals and each RVi independently selected from the group of C2 to C60 monovalent alkenyl hydrocarbon radicals wherein said composition comprises a star branched siloxane compound.
24 more elements
Dependencies are inferred from the claim text.