Compositions and methods for making polyesters and articles therefrom

US8980774B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8980774-B2
Application numberUS-201213524828-A
CountryUS
Kind codeB2
Filing dateJun 15, 2012
Priority dateJun 15, 2012
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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Polyester materials, methods for making polyesters materials, and uses of the polyester materials in binder materials and articles of manufacture are disclosed. In one embodiment, a process is provided for preparing a polyester solution, including mixing monomers of at least one organic acid containing at least three carboxylic groups and at least one multi-hydroxyl alcohol containing at least three hydroxyl groups to form a reaction mixture, heating the reaction mixture to a first temperature, polymerizing the monomers at the first temperature until reaching an acid value from about 200 to about 400 mg KOH/g, adjusting the temperature to a second temperature less than the first temperature, and forming the polyester solution. The polyester materials may be mixed with cross-linking materials to form binder materials. The binder material may then be used to form articles of manufacture.

First claim

Opening claim text (preview).

What is claimed is: 1. A binder material prepared using a formulation comprising: a polyester material formed from at least one organic acid having three carboxylic groups and at least one multi-hydroxyl alcohol having three hydroxyl groups; a cross-linking agent comprising an acrylic polymer; and a vinyl alcohol containing polymer, wherein the binder material is free of formaldehyde. 2. The binder material of claim 1 , wherein the formulation further co…

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What does patent US8980774B2 cover?
Polyester materials, methods for making polyesters materials, and uses of the polyester materials in binder materials and articles of manufacture are disclosed. In one embodiment, a process is provided for preparing a polyester solution, including mixing monomers of at least one organic acid containing at least three carboxylic groups and at least one multi-hydroxyl alcohol containing at least …
Who is the assignee on this patent?
Zhang Yingchao, Subrayan Raman C, Malhotra Vinay, and 2 more
What technology area does this patent fall under?
Primary CPC classification D04H1/587. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Mar 17 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).