# US 5,703,163 A · Loop polymers

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- Number: US 5,703,163 A
- Document ID: US5703163A
- Status: Granted
- Kind: A
- Application number: 08/455,696
- Filed: 1995-05-31
- Granted: 1997-12-30
- Earliest claimed: 1995-05-31
- Assignees: Fluorochem, Inc.
- Inventors: Kurt Baum
- Web page: https://patentgrep.com/patent/US5703163A

## CPC

- C09D 183/10: Block or graft copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C09D151/08, C09D153/00)
- C08G 77/38: Polysiloxanes modified by chemical after-treatment
- C08G 77/442: containing vinyl polymer sequences
- Y10T 428/31663: As siloxane, silicone or silane
- Y10T 428/31855: Of addition polymer from unsaturated monomers
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Novel loop polymers having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone. The loop polymers may also have hydroxy or carboxy groups which can be capped with diisocyanates or epoxies, respectively.

## Claims

### Claim 1

Loop polymers having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups form which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone, wherein the difunctional organic compound is alpha, omega-hydride terminated polydimethylsiloxane.

### Claim 2

Loop polymers having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups form which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone, wherein the difunctional organic compound is an alpha, omega-hydride terminated polysiloxane having the general formula= ##STR7## wherein n is zero or an integer of from 1 to about 100 and R is selected from the group consisting of alkyl, phenyl, cyano and polyfluoroalkyl containing from 1 to about 6 carbon atoms.