US4812364A
Expired / Lapsed
US
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Polyether siloxane graft polymers
Assignee: Bayer AG
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Filing: 1987-12-08
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Granted: 1989-03-14
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Expires: 2007-12-08
Abstract
Abstract Novel graft copolymer comprising (a) 0.1 to 99.9% by weight of polyalkylene oxide-organopolysiloxane block and/or comb polymer units and (b) 99.1 to 0.1% by weight of units of polymerized perfluoroalkyl substituted allyl compounds, which graft polymers contain structural elements corresponding to the following general formula: ##STR1## wherein X denotes a hydrogen atom or a methyl group, Y and Z denote, independently of one another, a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms Q denotes a divalent alkylene group with 1 to 12 carbon atoms or other divalent radicals, R f denotes a perfluorinated aliphatic, optionally branched group with 1 to 20 carbon atoms and the group may contain at most one hydrogen or chlorine atom on two carbon atoms in addition to the fluorine atoms, R Si denotes a polyalkylene oxide-organopolysiloxane block and/or comb polymer residue and R Po denotes a polyalkylene oxide chain of the polyalkylene oxide-organopolysiloxane block and/or comb polymer, and in the graft polymers, more than 50% by weight of perfluoroalkyl substituted allyl monomers have been added in monomolecular form to the alkylene oxide units of the polyalkylene oxideorganopolysiloxane block and/or comb polymers, are useful as levelling agents for aqueous and/or solvent-containing lacquers and coating systems, for powder lacquers and for whirl sintering coating compounds.
Inventors
- 👤 Heinrich Alberts
- 👤 Hans-Bernd Alteweier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:11
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12; C08F283/122; C08F283/06; C09; C09D; C09D7/00; C09D7/40; C09D7/47; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
228 words
A graft comprising (a) 0.1 to 99.9% by weight of polyalkylene oxide-organo-polysiloxane block and/or comb polymer units and (b) 99.9 to 0.1 % by weight of units of a polymerized perfluoroalkyl substituted allyl compound, which graft polymer contains structural elements of the formula ##STR12## wherein X denotes a hydrogen atom or a methyl group, Y and Z denote, independently of one another, a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms, Q denotes a divalent alkylene group containing 1 to 12 carbon atoms, a divalent group of the formula ##STR13## ##STR14## or a group of the formula ##STR15## wherein R denotes a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms, and m denotes an integer from 0 to 6, R f denotes a perfluorinated aliphatic group containing 1 to 20 carbon atoms, which group may contain at the most one hydrogen or one chlorine atom on two carbon atoms in addition to the fluorine atoms, or a perfluoroalkyl polyether group, R Si denotes the radical of a polyalkylene oxide-organopolysiloxane block and/or comb polymer, R Po denotes a polyalkylene oxide chain of the polyalkylene oxide-organopolysiloxane black and/or comb polymer, in the graft polymers more than 50 % by weight of perfluoroalkyl-substituted allyl monomers being fixed as monomolecular units to the alkylene oxide units of the polyalkylene oxide-organpolysiloxane block and/or comb polymers.
Claim 2
Dependent Claim
228 words
A graft comprising (a) 0.1 to 99.9% by weight of polyalkylene oxide-organo-polysiloxane block and/or comb polymer units and (b) 99.9 to 0.1 % by weight of units of a polymerized perfluoroalkyl substituted allyl compound, which graft polymer contains structural elements of the formula ##STR12## wherein X denotes a hydrogen atom or a methyl group, Y and Z denote, independently of one another, a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms, Q denotes a divalent alkylene group containing 1 to 12 carbon atoms, a divalent group of the formula ##STR13## ##STR14## or a group of the formula ##STR15## wherein R denotes a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms, and m denotes an integer from 0 to 6, R f denotes a perfluorinated aliphatic group containing 1 to 20 carbon atoms, which group may contain at the most one hydrogen or one chlorine atom on two carbon atoms in addition to the fluorine atoms, or a perfluoroalkyl polyether group, R Si denotes the radical of a polyalkylene oxide-organopolysiloxane block and/or comb polymer, R Po denotes a polyalkylene oxide chain of the polyalkylene oxide-organopolysiloxane black and/or comb polymer, in the graft polymers more than 50 % by weight of perfluoroalkyl-substituted allyl monomers being fixed as monomolecular units to the alkylene oxide units of the polyalkylene oxide-organpolysiloxane block and/or comb polymers.
Claim 3
Dependent Claim
42 words
A graft polymer according to claim 1, wherein the polyalkylene oxide-organopoly-siloxane block and/or comb polymer units are present in 35 to 95 % by weight and the units of polymerized perfluoroalkyl-substituted allyl compounds are present in 65 to 5 % by weight.
Claim 4
Dependent Claim
37 words
A graft polymer according to claim 1, wherein more than 70 % by weight of perfluoroalkyl substituted allyl monomers are fixed as monomolecular units to the alkylene oxide units of the polyalkylene oxide-organo-polysiloxane block and/or comb polymers.
Claim 5
Dependent Claim
36 words
A graft polymer according to claim 1, wherein R f denotes a perfluoroalkyl group of the formula CF 3 (C 2 ) n -- wherein n denotes an integer with a value from 2 to 19.
Claim 6
Dependent Claim
49 words
A process for the preparation of a graft polymer according to claim 1 comprising radical polymerizing from 99.9 to 0.1 % by weight of a perfluoroalkyl-substituted allyl monomer of the formula ##STR16## with from 0.1 to 99.9 % by weight of a polyalkylene oxide- organo-polysiloxane block and/or comb polymer.
Claim 7
Dependent Claim
34 words
A process according to claim 5, wherein 65 to 5% by weight of the perfluoroalkyl-substituted allyl monomer is polymerized with 35 to 95 % by weight of the polyalkylene oxide-organopolysiloxane block and/or comb polymer.
Claim 8
Dependent Claim
36 words
A process according to claim 5, wherein more than 50% by weight of the perfluoroalkyl substituted allyl monomer is added in monomolecular form to the alkylene oxide units of the polyalkylene oxide-organopolysiloxane block and/or comb polymer.
Claim 9
Dependent Claim
36 words
A process according to claim 5, wherein more than 70% by weight of the perfluoroalkyl substituted allyl monomer is added in monomolecular form to the alkylene oxide units of the polyalkylene oxide-organopolysiloxane block and/or comb polymer.
Claim 10
Dependent Claim
30 words
In a lacquer or coating composition comprising a coating agent and a levelling agent, the improvement which comprises employing as said levelling agent a graft copolymer according to claim 1.
Claim 11
Dependent Claim
30 words
In the coating of a substrate with a lacquer or coating composition containing a levelling agent, the improvement wherein said levelling agent comprises a graft copolymer according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |