US4379913A
Expired / Lapsed
US
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Compositions useful as internal antistatic additives for polymeric structures
Assignee: Diamond Shamrock Chemicals Co
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Filing: 1982-05-04
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Granted: 1983-04-12
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Expires: 2002-05-04
Abstract
Abstract Chain extended random alkoxylated polyols having branched configurations are useful as internal antistatic additives for polymeric structures. A polyol having a branched configuration is alkoxylated with a mixture of ethylene oxide and propylene oxide and then chain extended to produce a high viscosity fluid additive which is compatible as a dispersed phase with polymer melts and does not agglomerate or separate from the melt during spinning. From about 0.1% to about 15% by weight of the additive is incorporated in polymeric structures as an antistatic agent. A useful additive composition is obtained using pentaerythritol tetrapropoxylate as the polyol and Bisphenol A diglycidyl ether as the difunctional reactant.
Inventors
- 👤 Calvin J. Waitkus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:18
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4833; C08G18/4837; C08G63/00; C08G63/02; C08G63/12; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08L101/00; C08L67/00; C08L77/00; Y; Y10; Y10S; Y10S524/00; Y10S524/91; Y10S524/911
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
40 words
An internal antistatic additive composition for polymeric structures which is a branched configuration polyol first alkoxylated with a mixture of ethylene oxide and propylene oxide and then reacted with a difunctional reactant to produce a chain extended random alkoxylated polyol.
Claim 2
Dependent Claim
40 words
An internal antistatic additive composition for polymeric structures which is a branched configuration polyol first alkoxylated with a mixture of ethylene oxide and propylene oxide and then reacted with a difunctional reactant to produce a chain extended random alkoxylated polyol.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the molecular weight of the alkoxylated polyol is at least 1,500.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the polyol is pentaerythritol tetrapropoxylate and the difunctional reactant is Bisphenol A diglycidyl ether.
Claim 5
Dependent Claim
18 words
The composition of claim 1 wherein the polyol is pentaerythritol tetrapropoxylate and the difunctional reactant is dimethyl terephthalate.
Claim 6
Dependent Claim
21 words
The composition of claim 1 wherein the polyol is pentaerythritol tetrapropoxylate and the difunctional reactant is 5-sulfo isophthalic acid dimethyl ester.
Claim 7
Dependent Claim
25 words
A process of incorporating an effective amount of the composition of claim 1 into a polymeric structure sufficient to improve antistatic properties of the structure.
Claim 8
Dependent Claim
21 words
The process of claim 6 wherein about 0.1% to about 15% by weight of the composition is incorporated into the structure.
Claim 9
Dependent Claim
9 words
The product produced by the process of claim 6.
Claim 10
Dependent Claim
21 words
A polymeric structure containing an effective amount of the composition of claim 1 sufficient to improve antistatic properties of the structure.
Claim 11
Dependent Claim
21 words
The polymeric structure of claim 9 wherein there is present from about 0.1 to about 15% by weight of the composition.
Claim 12
Dependent Claim
12 words
The polymeric structure of claim 9 wherein the structure is a polyamide.
Claim 13
Dependent Claim
12 words
The polymeric structure of claim 9 wherein the structure is a polyester.
References Cited (Backward Citations)
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US3666731A
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US4093676A
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US4108922A
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US3882190A
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US4069277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-11 | 1986-10-11 | 1987-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-11 | 1990-10-11 | 1991-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-11 | 1994-10-11 | 1995-04-12 | $7700.00 | Window Closed / Lapsed |