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US5179142A
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Polylactone-modified organopolysiloxane compounds
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1990-06-04
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Granted: 1993-01-12
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Expires: 2010-06-04
Abstract
Abstract A polylactone-modified organopolysiloxane compound, wherein a polylactone-containing group represented by the formula (I) is bound to a silicon atom located at at least either of the terminal positions and/or intermediate positions to impart excellent properties as a synthetic resin modifier (when Y in (I) is an acetyl group or a hydrogen atom) or as a film former (when Y in (I) is a hydrogen atom): <IMAGE> (I) wherein Z represents a trivalent hydrocarbon residue which may contain oxygen, sulfur or/and nitrogen atom(s); X represents a lactone group of the formula, <IMAGE> (wherein R represents a hydrogen atom or an alkyl group containing from 1 to 12 carbon atoms; a represents an integer from 4 to 6), k and L each represents an integer of 1 or more; and Y represents a hydrogen atom or an acetyl group.
Inventors
- 👤 Ichiro Ono
- 👤 Hiroshi Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:43
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/61; C08G77/00; C08G77/42; C08G77/445; C08L101/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
A polylactone-modified organopolysiloxane compound wherein a polylactone-containing group represented by the formula (I) is bound to a silicon atom located at least either of the terminal positions and/or intermediate positions: ##STR51## wherein Z represents a hydrocarbon residue which may contain oxygen, sulfur or/and nitrogen atom(s); X represents a lactone group of the formula, ##STR52## wherein R represents a hydrogen atom or an alkyl group containing from 1 to 12 carbon atoms; a represents an integer from 4 to 6; k and l each represents an integer of 1 or more; and Y represents a hydrogen atom or an acetyl group.
Claim 2
Dependent Claim
100 words
A polylactone-modified organopolysiloxane compound wherein a polylactone-containing group represented by the formula (I) is bound to a silicon atom located at least either of the terminal positions and/or intermediate positions: ##STR51## wherein Z represents a hydrocarbon residue which may contain oxygen, sulfur or/and nitrogen atom(s); X represents a lactone group of the formula, ##STR52## wherein R represents a hydrogen atom or an alkyl group containing from 1 to 12 carbon atoms; a represents an integer from 4 to 6; k and l each represents an integer of 1 or more; and Y represents a hydrogen atom or an acetyl group.
Claim 3
Dependent Claim
66 words
The polylactone-modified organopolysiloxane compound of claim 1 which is represented by the following general formula: ##STR53## wherein A represents a polycaprolactone-containing group of the formula, ##STR54## B and D each represents A or methyl group; m represents an integer from 0 to 200; and n represents an integer from 0 to 20; but when n is 0, at least either B or D must be A.
Claim 4
Dependent Claim
16 words
A synthetic resin modifier, which contains as a main component the polylactone-modified organopolysiloxane of claim 1.
Claim 5
Dependent Claim
68 words
The synthetic resin modifier of claim 3, further comprising the resin to be modified selected from among polyethylene resin, polypropylene resin, polyvinyl chloride resin, polystyrene resin, acrylonitrile-butadiene-styrene copolymer resin, acrylonitrile-styrene copolymer resin, styrene-butadiene copolymer resin, vinyl chloride-vinyl acetate copolymer resin, polymethylmethacrylate resin, saturated polyester resin, polyamide resin, polyurethane resin, epoxy resin, phenol resin, amino resin, polycarbonate resin, polyfluoroolefin resin, cellulose resin, polybutadiene resin, alkyd resin, or silicone resin.
Claim 6
Dependent Claim
18 words
The synthetic resin modifier of claim 3, wherein Y in the general formula (I) represents a hydrogen atom.
Claim 7
Dependent Claim
29 words
The synthetic resin modifier of claim 5, wherein resin to be modified is at least one group selected from among epoxy group, isocyanate group, carboxy group or alkoxysilyl group.
Claim 8
Dependent Claim
34 words
The synthetic resin modifier of claim 3, wherein at least one additive is selected from among a catalyst, a filler, a solvent, an antioxidant, an aging inhibitor, an antistatic agent or a coloring agent.
Claim 9
Dependent Claim
27 words
A film former which contains as a main component the polyactone-modified organopolysiloxane compound of claim 1, wherein Y in the general formula (I) represents a hydrogen atom.
Claim 10
Dependent Claim
25 words
The film former of claim 8, further comprising a polyfunctional cross-linking agent having two or more of substituent groups which are reactive to hydroxyl group.
Claim 11
Dependent Claim
22 words
The film former of claim 9, wherein said crosslinking agent is an isocyanate compound having not less than two isocynate functional groups.
Claim 12
Dependent Claim
30 words
The film former of claim 10, wherein an amount of the isocyanate compound is from 0.5-2.0 equivalents to one equivalent of the terminal hydroxyl groups of the polylactone-modified organopolysiloxane compound.
Claim 13
Dependent Claim
21 words
The film former of claim 8, further comprising an organotin compound as a catalyst selected from dibutyltin dioctate or dibutyltin dilaurate.
Claim 14
Dependent Claim
21 words
The film former of claim 12, wherein an amount of the organotin compound is 0.01-1.0 weight % to the main component.
Claim 15
Dependent Claim
11 words
The film former of claim 8, further comprising an inorganic filler.
Claim 16
Dependent Claim
32 words
The film former of claim 14, wherein the inorganic filler is at least one selected from silica, alumina, glass powder, clay, talc, calcium carbonate, mica powder, titanium dioxide, wollastonite, or magnesium hydroxide.
Claim 17
Dependent Claim
22 words
The film former of claim 15, further comprising an agent selected from among an oxidation inhibitor, aging inhibitor and, an antistatic agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-01-12 | 1996-07-13 | 1997-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-12 | 2000-07-13 | 2001-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-12 | 2004-07-13 | 2005-01-12 | $7700.00 | Window Closed / Lapsed |