Solvent cement formulations having extended shelf life

US11976222B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11976222-B2
Application numberUS-202318112643-A
CountryUS
Kind codeB2
Filing dateFeb 22, 2023
Priority dateJan 24, 2020
Publication dateMay 7, 2024
Grant dateMay 7, 2024

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Disclosed are solvent cement formulations having beneficial stability and performance characteristics that include a thermoplastic resin, one or more organic solvents, an inhibitor of an oxidation-reduction reaction, and a heat stabilizer.

First claim

Opening claim text (preview).

What is claimed: 1. A solvent cement formulation comprising: polyvinyl chloride (PVC) resin; one or more organic solvents; a heat stabilizer; and an inhibitor of an oxidation-reduction reaction. 2. The solvent cement formulation according to claim 1 , wherein the one or more organic solvents includes a ketone, and do not include THF. 3. The solvent cement formulation according to claim 1 , comprising cyclopentanone. 4. The solvent cement formulation according to claim 1 , wherein the one or more organic solvents do not include cyclohexanone. 5. A solvent cement formulation comprising: polyvinyl chloride (PVC) resin; cyclopentanone and one or more additional organic solvents; a heat stabilizer; and an inhibitor of an oxidation-reduction reaction. 6. The solvent cement formulation according to claim 5 , wherein the inhibitor of an oxidation-reduction reaction includes an ascorbate, a polyunsaturated fatty acid, Vitamin E, lecithin, or any combination thereof.

Assignees

Inventors

Classifications

  • C09J127/06Primary

    Homopolymers or copolymers of vinyl chloride · CPC title

  • Stabilisers against oxidation, heat, light, ozone · CPC title

  • Halogenation · CPC title

  • Vinyl chloride · CPC title

  • Cyclic anhydrides · CPC title

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Frequently asked questions

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What does patent US11976222B2 cover?
Disclosed are solvent cement formulations having beneficial stability and performance characteristics that include a thermoplastic resin, one or more organic solvents, an inhibitor of an oxidation-reduction reaction, and a heat stabilizer.
Who is the assignee on this patent?
Oatey Co
What technology area does this patent fall under?
Primary CPC classification C09J127/06. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 07 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).