US4143057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coordination complexes as catalysts
Assignee: Union Carbide Corp
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Filing: 1977-02-28
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Granted: 1979-03-06
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Expires: 1997-02-28
Abstract
Abstract A process for producing polyesters and copolyesters, useful for making films and fibers, by the polycondensation of dicarboxylic acids and aliphatic glycols using coordinations complexes of metal halides and silicon compounds as catalysts.
Inventors
- 👤 Kurt Weinberg
- 👤 Gordon C. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; C08G63/78; C08G63/82
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
209 words
A coordination complex of: (A) a metal halide of a metal selected from the group consisting of titanium, zirconium, zinc, germanium, tin, lead, antimony and bismuth; and (B) a silicon compound selected from the group consisting of: ##STR5## wherein W is CH 2 ═CX-- or ##STR6## X is hydrogen or methyl and is methyl only when m is one; R* is alkyl or haloalkyl having from 1 to 4 carbon atoms; R** is methyl, ethyl, butyl, methoxy, ethoxy or butoxy; R is methyl, ethyl, butyl, methoxy, ethoxy, butoxy or trimethylsiloxy; R' is methyl, methoxy, ethoxy, butoxy or trimethylsiloxy; R" is methoxy, ethoxy, butoxy, trimethylsiloxy or vinyldimethylsiloxy; R''' is methyl, ethyl, butyl or trimethylsilyl; Me is methyl; Z is methyl or W; Q is NH 2 CH 2 --, NH 2 CH 2 CH 2 NHCH 2 --, NC--, HS-- or HSCH 2 CH 2 S-- group; n is an integer having a value of from 2 to 5; m is an integer having a value of zero or one; x is an integer having a value of from 1 to 100; and y is an integer having a value of from 1 to 100; wherein the mole ratio of A:B in said coordination complex is from 1:1 to 1:7.
Claim 2
Dependent Claim
209 words
A coordination complex of: (A) a metal halide of a metal selected from the group consisting of titanium, zirconium, zinc, germanium, tin, lead, antimony and bismuth; and (B) a silicon compound selected from the group consisting of: ##STR5## wherein W is CH 2 ═CX-- or ##STR6## X is hydrogen or methyl and is methyl only when m is one; R* is alkyl or haloalkyl having from 1 to 4 carbon atoms; R** is methyl, ethyl, butyl, methoxy, ethoxy or butoxy; R is methyl, ethyl, butyl, methoxy, ethoxy, butoxy or trimethylsiloxy; R' is methyl, methoxy, ethoxy, butoxy or trimethylsiloxy; R" is methoxy, ethoxy, butoxy, trimethylsiloxy or vinyldimethylsiloxy; R''' is methyl, ethyl, butyl or trimethylsilyl; Me is methyl; Z is methyl or W; Q is NH 2 CH 2 --, NH 2 CH 2 CH 2 NHCH 2 --, NC--, HS-- or HSCH 2 CH 2 S-- group; n is an integer having a value of from 2 to 5; m is an integer having a value of zero or one; x is an integer having a value of from 1 to 100; and y is an integer having a value of from 1 to 100; wherein the mole ratio of A:B in said coordination complex is from 1:1 to 1:7.
Claim 3
Dependent Claim
34 words
A coordination complex as claimed in claim 1, wherein silicon compound (B) is a compound of the general formula: ##STR7## wherein W, R, R', R", n and m are as defined in claim 1.
Claim 4
Dependent Claim
31 words
A coordination complex as claimed in claim 1, wherein silicon compound (B) is a compound of the general formula: ##STR8## wherein Me, W and Z are as defined in claim 1.
Claim 5
Dependent Claim
33 words
A coordination complex as claimed in claim 1, wherein silicon compound (B) is a compound of the general formula: ##STR9## wherein Me, W, R"', x and y are as defined in claim 1.
Claim 6
Dependent Claim
33 words
A coordination complex as claimed in claim 1, wherein silicon compound (B) is a compound of the general formula: QCH.sub.2 CH.sub.2 SiR.sub.3 ** wherein Q and R** are as defined in claim 1.
Claim 7
Dependent Claim
17 words
A coordination complex as claimed in claim 1, wherein the silicon compound (B) is diethoxyphosphorylethyl methyl diethoxysilane.
Claim 8
Dependent Claim
16 words
A coordination complex as claimed in claim 1, wherein the silicon compound (B) is 3-aminopropyl triethoxysilane.
Claim 9
Dependent Claim
16 words
A coordination complex as claimed in claim 1, wherein the silicon compound (B) is 2-cyanoethyl triethoxysilane.
Claim 10
Dependent Claim
16 words
A coordination complex as claimed in claim 1, wherein the silicon compound (B) is 2-mercaptoethyl triethoxysilane.
Claim 11
Dependent Claim
15 words
A coordination complex as claimed in claim 1 of titanium tetrachloride and diethoxyphosphorylethyl methyl diethoxysilane.
Claim 12
Dependent Claim
14 words
A coordination complex as claimed in claim 1 of titanium tetrachloride and 2-cyanoethyl triethoxysilane.
Claim 13
Dependent Claim
15 words
A coordination complex as claimed in claim 1 of antimony trichloride and diethoxyphosphorylethyl methyl diethoxysilane.
Claim 14
Dependent Claim
14 words
A coordination complex as claimed in claim 1 of germanium tetrachloride and 3-aminopropyl triethoxysilane.
Claim 15
Dependent Claim
15 words
A coordination complex as claimed in claim 1 of zirconium tetrachloride and diethoxyphosphorylethyl methyl diethoxysilane.
Claim 16
Dependent Claim
15 words
A coordination complex as claimed in claim 1 of tin tetrachloride and diethoxyphosphorylethyl methyl diethoxysilane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |