Hydraulic fluid composition
US-2015376541-A1 · Dec 31, 2015 · US
Cutting fluids with improved performance
US8980809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980809-B2 |
| Application number | US-200913500560-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2009 |
| Priority date | Oct 16, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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The cutting of semiconducting crystals with a wire saw is facilitated with a cutting fluid comprising a polyalkylene glycol neutralized with an un-neutralized or partially neutralized polymeric acid that has a molecular weight of 500 to 1,000,000 and contains more than three acid groups per molecule.
First claim
Opening claim text (preview).
What is claimed is: 1. A polyalkylene glycol product obtainable by polymerization of alkylene oxide using a base catalyst, wherein the base catalyst and polyalkylene glycol are neutralized with an un-neutralized or partially neutralized polymeric acid that has a molecular weight of 500 to 1,000,000 and contains more than three acid groups per molecule, wherein the polymeric acid is selected from the group consisting of polyalkylene oxide radically grafted by one or more of acrylic…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8980809B2 cover?
- The cutting of semiconducting crystals with a wire saw is facilitated with a cutting fluid comprising a polyalkylene glycol neutralized with an un-neutralized or partially neutralized polymeric acid that has a molecular weight of 500 to 1,000,000 and contains more than three acid groups per molecule.
- Who is the assignee on this patent?
- Yu Wanglin, Aguilar Daniel A, Cuthbert John B, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C10M169/041. Mapped technology areas include Chemistry & Metallurgy.
- 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).