US3935154A
Expired / Lapsed
US
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Block copolyesters of polysiloxanes
Assignee: Eastman Kodak Co
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Filing: 1974-09-24
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Granted: 1976-01-27
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Expires: 1994-09-24
Abstract
Abstract Solvent soluble block copolyesters consisting essentially of units having the formula: ##EQU1## WHEREIN R is an alkylene radical containing at least 3 carbon atoms; R 1 is an alkyl radical and R 2 is an alkyl, alkaryl, aralkyl or aryl radical; A is an alkylene or arylene radical; a is an integer of at least 10; b is an integer of at least 1; c is an integer of at least 2; and d is an integer of at least 2; are formed by first reacting a dihalo-polydiorganosiloxane with a dihydric phenol or other diol and subsequently reacting the resulting reaction product with a dicarboxylic acid halide. These polymers are useful as release agents and leveling agents and find particular utility as abhesive materials for waterless lithographic printing plates.
Inventors
- 👤 John Duval Cawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:48
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/445; C08G63/00; C08G63/68; C08G63/695; C08G63/6954; C08G63/6956; C08L; C08L83/00; C08L83/10; G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; G03G13/286; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0564; G03G5/0578; G03G5/0592
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
164 words
A solvent-soluble block copolyester having a molecular weight of at least 10,000 and an inherent viscosity greater than 0.2 in chloroform, and having the formula: ##EQU5## wherein R is an alkylene radical containing at least 3 carbon atoms, A is selected from the group consisting of alkylene radicals containing from about 2 to about 25 carbon atoms, and arylene radicals containing from about 6 to about 25 carbon atoms derived from aromatic diols, R 1 is an alkyl radical containing from about 1 to about 10 carbon atoms, and R 2 is selected from the group consisting of R 1 , phenyl, naphthyl, and anthracenyl and aralkyl wherein the alkyl portion contains from 1 to 10 carbon atoms and alkaryl wherein the alkyl portion contains from 1 to 10 carbon atoms, b is an integer of at least 1, a is an integer of at least 10, c is an integer of at least 2, and d is an integer of at least 2.
Claim 2
Dependent Claim
164 words
A solvent-soluble block copolyester having a molecular weight of at least 10,000 and an inherent viscosity greater than 0.2 in chloroform, and having the formula: ##EQU5## wherein R is an alkylene radical containing at least 3 carbon atoms, A is selected from the group consisting of alkylene radicals containing from about 2 to about 25 carbon atoms, and arylene radicals containing from about 6 to about 25 carbon atoms derived from aromatic diols, R 1 is an alkyl radical containing from about 1 to about 10 carbon atoms, and R 2 is selected from the group consisting of R 1 , phenyl, naphthyl, and anthracenyl and aralkyl wherein the alkyl portion contains from 1 to 10 carbon atoms and alkaryl wherein the alkyl portion contains from 1 to 10 carbon atoms, b is an integer of at least 1, a is an integer of at least 10, c is an integer of at least 2, and d is an integer of at least 2.
Claim 3
Dependent Claim
108 words
The block copolyesters of claim 1 wherein A is an arylene radical having the formula: ##SPC4## wherein R 3 and R 4 are selected from the group consisting of hydrogen atoms, substituted and ubsubstituted alkyl radicals, and substituted and unsubstituted aryl radicals and R 3 and R 4 taken together with the carbon atom to which they are attached may represent a monocyclic, bicyclic or heterocyclic moiety, and R 5 , R 6 , R 7 and R 8 are independently selected from the group consisting of hydrogen atoms, substituted and unsubstituted alkyl radicals, substituted and unsubstituted aryl radicals, halogen atoms, cyano radicals, dialkylamino radicals, and alkoxy radicals.
Claim 4
Dependent Claim
15 words
The block copolyester of claim 1 where R 1 and R 2 are each methyl.
Claim 5
Dependent Claim
10 words
The block copolyester of claim 1 wherein A is butylene.
Claim 6
Dependent Claim
17 words
The block copolyester of claim 1 wherein a is a number from about 10 to about 200.
Claim 7
Dependent Claim
10 words
The block copolyester of claim 1 wherein R is octylene.
Claim 8
Dependent Claim
9 words
The block copolyester of claim 1 wherein R propylene.
Claim 9
Dependent Claim
19 words
The block copolyester of claim 1 wherein the molecular weight is from at least 10,000 to greater than 1,000,000.
Claim 10
Dependent Claim
17 words
The block copolyester of claim 1 wherein R contains from about 3 to about 20 carbon atoms.
Claim 11
Dependent Claim
40 words
The block copolyester of claim 1 wherein a is from about 10 to about 200, b is from about 1 to about 25, c is from about 2 to about 20, and d is from about 2 to about 1,000.
Claim 12
Dependent Claim
103 words
A solvent-soluble block copolyester having a molecular weight of at least 10,000, and an inherent viscosity greater than 0.2 in chloroform, and having the formula: ##EQU6## wherein R is an alkylene radical containing 3 to 20 carbon atoms, A is selected from the group consisting of alkylene having 2 to 20 carbon atoms and bisphenylene radicals, R 1 and R 2 are alkyl radicals containing 2 to 10 carbon atoms, a is an integer of 10 to 200, b is an integer of 1 to 25, c is an integer of 5 to 20, and d is an integer of 2 to 1000.
Claim 13
Dependent Claim
103 words
A solvent-soluble block copolyester having a molecular weight of at least 10,000, and an inherent viscosity greater than 0.2 in chloroform, and having the formula: ##EQU6## wherein R is an alkylene radical containing 3 to 20 carbon atoms, A is selected from the group consisting of alkylene having 2 to 20 carbon atoms and bisphenylene radicals, R 1 and R 2 are alkyl radicals containing 2 to 10 carbon atoms, a is an integer of 10 to 200, b is an integer of 1 to 25, c is an integer of 5 to 20, and d is an integer of 2 to 1000.
Claim 14
Dependent Claim
42 words
A solvent-soluble block copolyester having the formula: ##SPC5## wherein a is from about 10 to about 200, b is from about 1 to about 25, c is from about 5 to about 20 and d is from about 2 to about 1000.
Claim 15
Dependent Claim
42 words
A solvent-soluble block copolyester having the formula: ##SPC5## wherein a is from about 10 to about 200, b is from about 1 to about 25, c is from about 5 to about 20 and d is from about 2 to about 1000.
Claim 16
Independent Claim
104 words
A method of preparing a solventsoluble block copolyester having a molecular weight of at least 10,000 and an inherent viscosity of at least 0.2 in chloroform comprising reacting (1) an alpha, omega-dihalo-polydiorganosiloxane comprising from about 10 to about 200 chemically combined diorganosiloxy units consisting essentially of organosiloxy units wherein each of the silicon atoms has two hydrocarbon radicals attached through a carbon-silicon bond wherein at least one of said hydrocarbon groups is an alkyl group and (2) an aliphatic or aromatic diol and subsequently reacting the reaction product of (1) and (2) with an aliphatic dicarboxylic acid halide containing at least 5 carbon atoms.
Claim 17
Independent Claim
104 words
A method of preparing a solventsoluble block copolyester having a molecular weight of at least 10,000 and an inherent viscosity of at least 0.2 in chloroform comprising reacting (1) an alpha, omega-dihalo-polydiorganosiloxane comprising from about 10 to about 200 chemically combined diorganosiloxy units consisting essentially of organosiloxy units wherein each of the silicon atoms has two hydrocarbon radicals attached through a carbon-silicon bond wherein at least one of said hydrocarbon groups is an alkyl group and (2) an aliphatic or aromatic diol and subsequently reacting the reaction product of (1) and (2) with an aliphatic dicarboxylic acid halide containing at least 5 carbon atoms.
Claim 18
Dependent Claim
30 words
The method of claim 13 wherein the alpha,Ω-dihalo-polydiorganosiloxane is alpha,Ω-dichloro-polydialkyl siloxane and the diol is an alkylene diol containing from about 2 to about 20 carbon atoms or dihydric phenol.
Claim 19
Dependent Claim
12 words
The method of claim 14 wherein the alkylsiloxy units are dimethylsiloxy units.
Claim 20
Dependent Claim
12 words
The method of claim 14 wherein the diol is a dihydric phenol.
Claim 21
Dependent Claim
11 words
The method of claim 16 wherein the dihydric phenol is 2,2-bis(4-hydroxyphenyl)propane.
Claim 22
Dependent Claim
11 words
The method of claim 14 wherein the diol is butylene glycol.
Claim 23
Dependent Claim
14 words
The method of claim 13 wherein the aliphatic dicarboxylic acid halide is sebacyl chloride.
Claim 24
Dependent Claim
14 words
The method of claim 13 wherein the aliphatic dicarboxylic acid halide is adipyl chloride.
Claim 25
Dependent Claim
26 words
The method of claim 13 wherein the reaction of the alpha,Ω-dihalo-polydiorganosiloxane with the diol is carried out in the presence of a solvent at room temperature.
Claim 26
Dependent Claim
12 words
The method of claim 21 wherein the solvent is a chlorinated hydrocarbon.
Claim 27
Dependent Claim
29 words
The method of claim 13 wherein the reaction of diol-alpha,Ω dihalo-polydiorganosiloxane product with the dicarboxylic acid halide is carried out at room temperature in the presence of a solvent.
Claim 28
Dependent Claim
12 words
The method of claim 23 wherein the solvent is a chlorinated hydrocarbon.
Claim 29
Independent Claim
31 words
The method of forming a solvent-soluble block copolyester comprising reacting, in a chlorohydrocarbon solvent, an alpha,Ω-dichloropolydimethylsiloxane with 2,2-bis(4-hydroxyphenyl)propane, and subsequently reacting the reaction product with sebacyl chloride in a chlorohydrocarbon solvent.
Claim 30
Independent Claim
31 words
The method of forming a solvent-soluble block copolyester comprising reacting, in a chlorohydrocarbon solvent, an alpha,Ω-dichloropolydimethylsiloxane with 2,2-bis(4-hydroxyphenyl)propane, and subsequently reacting the reaction product with sebacyl chloride in a chlorohydrocarbon solvent.
Claim 31
Independent Claim
32 words
The method of forming a solvent-soluble block copolyester comprising reacting in a chlorohydrocarbon solvent an alpha,Ω-dichloropolydimethylsiloxane with butylene glycol and subsequently reacting the reaction product with sebacyl chloride in a chlorohydrocarbon solvent.
Claim 32
Independent Claim
32 words
The method of forming a solvent-soluble block copolyester comprising reacting in a chlorohydrocarbon solvent an alpha,Ω-dichloropolydimethylsiloxane with butylene glycol and subsequently reacting the reaction product with sebacyl chloride in a chlorohydrocarbon solvent.
References Cited (Backward Citations)
US3701815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |