US3899522A
Expired / Lapsed
US
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Trivalent antimony catalyst
Assignee: NL Chemicals Inc
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Filing: 1973-08-24
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Granted: 1975-08-12
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Expires: 1993-08-24
Abstract
Abstract A novel antimony catalyst for polyester condensation reactions is described comprising trivalent antimony having its valences occupied by dianion radicals of 1,2-diols and anion radicals or organic carboxylic acids. The molar ratio of antimony to dianion radical of 1,2-diol to anion radical of organic carboxylic acid is 1:1:1. The antimony compound is prepared by reacting a mixture of a 1,2-diol and a trivalent antimony reactant represented by the formula; wherein Sb is antimony, R1 is an anion radical of an organic carboxylic acid; and R2 is selected from the group consisting of anions of alcohols, anions of organic carboxylic acids and mixtures thereof.
Inventors
- 👤 Otto Ernest Loeffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:27
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/0201; B01J31/0211; B01J31/0212; B01J31/04; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/2239; C; C07; C07F; C07F9/00; C07F9/90; C07F9/902; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/85; C08G63/86; C08G63/866; B01J2531/00; B01J2531/50; B01J2531/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A TRIVALENT ANTIMONY CATALYST HAVING THE VALENCES OF ANTIMONY OCCUPIED BY DIANION RADICAL OF A 1,2-ALKANE DIOL AND ORGANIC CARBOXYLTE ANION RADICAL, SAID CARBOXYLATE ANION RADICAL CONTAINING FROM 1 TO 10 CARBON ATOMS, WHEREIN THE MOLAR RATO OF ANTIMONY TO DIANION RADCAL OF 1,2-ALKANE DIOL TO ORGANIC CARBOXYLATE ANION RADICALS IS 1:1:1, AND WHEREIN SAID DIANION RADICAL OF A 1,2-ALKANE DIOL IS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL DIANION, 1,2-PROPANE DIOL DIANION, 3-CHLORO-1,2-PROPANE DIOL DIAMION, 1,2-BUSTANE DIOL DIANION, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
83 words
A TRIVALENT ANTIMONY CATALYST HAVING THE VALENCES OF ANTIMONY OCCUPIED BY DIANION RADICAL OF A 1,2-ALKANE DIOL AND ORGANIC CARBOXYLTE ANION RADICAL, SAID CARBOXYLATE ANION RADICAL CONTAINING FROM 1 TO 10 CARBON ATOMS, WHEREIN THE MOLAR RATO OF ANTIMONY TO DIANION RADCAL OF 1,2-ALKANE DIOL TO ORGANIC CARBOXYLATE ANION RADICALS IS 1:1:1, AND WHEREIN SAID DIANION RADICAL OF A 1,2-ALKANE DIOL IS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL DIANION, 1,2-PROPANE DIOL DIANION, 3-CHLORO-1,2-PROPANE DIOL DIAMION, 1,2-BUSTANE DIOL DIANION, AND MIXTURES THEREOF.
Claim 3
Dependent Claim
28 words
The catalyst of claim 1 wherein said organic carboxylate anion radical is selected from the group consisting of acetate anion, butyrate anion, 2-ethyl hexanoate anion and mixtures thereof.
Claim 4
Dependent Claim
71 words
A trivalent antimony catalyst having the valences of antimony occupied by dianion radical of ethylene glycol and acetate anion radical wherein the molar ratio of antimony to dianion radical of ethylene glycol to acetate anion radical is 1:1:1; said catalyst exhibiting an X-ray diffraction pattern with characterizing d-spacings in the vicinity of 11.01, 5.43, 6.27 and 3.60 Angstroms, and having major infra-red absorption peaks at 1720, 1375 and 1570 reciprocal centimeters.
Claim 5
Dependent Claim
71 words
A trivalent antimony catalyst having the valences of antimony occupied by dianion radical of ethylene glycol and acetate anion radical wherein the molar ratio of antimony to dianion radical of ethylene glycol to acetate anion radical is 1:1:1; said catalyst exhibiting an X-ray diffraction pattern with characterizing d-spacings in the vicinity of 11.01, 5.43, 6.27 and 3.60 Angstroms, and having major infra-red absorption peaks at 1720, 1375 and 1570 reciprocal centimeters.
Claim 6
Dependent Claim
53 words
A process for the preparation of the trivalent antimony catalyst of claim 1 comprising; a. heating a mixture of about equimolar proportions of a 1,2-alkane diol selected from the group consisting of ethylene glycol, 1,2-propane, 1,2-butane, 3-chloro-1,2-propane, and mixtures thereof, and a trivalent antimony reactant; said trivalent antimony reactant represented by the formula;
Claim 7
Dependent Claim
12 words
The process of claim 4 wherein said mixture further comprises a solvent.
Claim 8
Dependent Claim
14 words
The process of claim 4 wherein said mixture is heated from 40*C to 120*C.
Claim 9
Dependent Claim
15 words
The process of claim 4 wherein said mixture is heated for less than 1 hour.
Claim 10
Dependent Claim
61 words
A process for the preparation of antimony glycoloxide which comprises heating a mixture of ethylene glycol and a trivalent antimony compound; said trivalent antimony compound having the valences of antimony occupied by dianion radical of ethylene glycol and organic carboxylate anion radical wherein the molar ratio of antimony to dianion radical of ethylene glycol to organic carboxylate anion radical is 1:1:1.
Claim 11
Dependent Claim
61 words
A process for the preparation of antimony glycoloxide which comprises heating a mixture of ethylene glycol and a trivalent antimony compound; said trivalent antimony compound having the valences of antimony occupied by dianion radical of ethylene glycol and organic carboxylate anion radical wherein the molar ratio of antimony to dianion radical of ethylene glycol to organic carboxylate anion radical is 1:1:1.
Claim 12
Dependent Claim
25 words
The process of claim 8 wherein said organic carboxylate anion radical is selected from the group consisting of acetate, butyrate, 2-ethyl hexanoate and mixtures thereof.
References Cited (Backward Citations)
US1688964A
Cited
US1701234A
Cited
US2221831A
Cited
US2226530A
Cited
US2466019A
Cited
US3484410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |