US3859266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcoholysis products
Assignee: Hi Tek Polymers Inc
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Filing: 1973-11-14
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Granted: 1975-01-07
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Expires: 1993-11-14
Abstract
Abstract A thermosetting polymeric composition useful in preparing protective coatings is disclosed comprising: 1. A. A FIRST POLYMER CONTAINING AT LEAST THREE ALIPHATIC HYDROXY GROUPS PER MOLECULE AND HAVING A WEIGHT PER HYDROXY GROUP OF ABOUT 50 TO 1000; B. A SECOND POLYMER FORMED FROM AT LEAST ONE MOL OF A LOW MOLECULAR WEIGHT ALCOHOL ACRYLATE ESTER MONOMER PER MOL OF HYDROXY GROUP IN SAID FIRST POLYMER; 2. A TIN-BASED THERMOSETTING CURING CATALYST, SELECTED FROM TIN ALCOHOLATES, CARBOXYLATES, HALIDES AND ALKYL OXIDES; AND 3. A SOLVENT OR DISPERSANT THEREFOR.
Inventors
- 👤 Donald D Carlos
- 👤 Darrell D Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2615; C08K5/0008; C08K5/0016; C08L; C08L33/00; C08L33/02; C08L57/00; C08L57/06; C08L57/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
A THERMOSETTING COMPOSITION COMPRISING A BLEND OF: A. A FIRST POLYMER CONTAINING AT LEAST THREE ALIPHATIC HYDROXY GROUPS PER MOLECULE AND HAVING A WEIGHT PER HYDROXY GROUP OF ABOUT 50 TO 1,000; B. A SECOND POLYMER DIFFERENT FROM SAID FIRST POLYMER CONTAINING AT LEAST ONE MOL OF ESTER MONOMER PER MOL OF HYDROXY GROUP IN THE SAID FIRST POLYMER WHEREIN THE ESTER MONOMER HAS THE GENERAL FORMULA:
Claim 2
Dependent Claim
67 words
A THERMOSETTING COMPOSITION COMPRISING A BLEND OF: A. A FIRST POLYMER CONTAINING AT LEAST THREE ALIPHATIC HYDROXY GROUPS PER MOLECULE AND HAVING A WEIGHT PER HYDROXY GROUP OF ABOUT 50 TO 1,000; B. A SECOND POLYMER DIFFERENT FROM SAID FIRST POLYMER CONTAINING AT LEAST ONE MOL OF ESTER MONOMER PER MOL OF HYDROXY GROUP IN THE SAID FIRST POLYMER WHEREIN THE ESTER MONOMER HAS THE GENERAL FORMULA:
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the catalyst is selected from the dialky tin dicarboxylates, the dialkyl tin dichlorides, the trialkyl tin carboxylates, the trialkyl tin chlorides, and the trialkyl tin oxides.
Claim 4
Dependent Claim
12 words
The composition of claim 2 wherein the catalyst is dibutyl tin dilaurate.
Claim 5
Dependent Claim
12 words
The composition of claim 2 wherein the catalyst is dibutyl tin diacetate.
Claim 6
Dependent Claim
12 words
The composition of claim 2 wherein the catalyst is dibutyl tin dichloride.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein the catalyst is present at the 0.5 to 10% weight level, based on the copolymer solids content.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |