Abrasive products and methods for fine polishing of ophthalmic lenses

US8968435B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8968435-B2
Application numberUS-201313853877-A
CountryUS
Kind codeB2
Filing dateMar 29, 2013
Priority dateMar 30, 2012
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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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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Abstract

Official abstract text for this publication.

A coated abrasive product including green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder, wherein the abrasive aggregates are dispersed within a polymer resin coating, and wherein the coated abrasive product is capable of polishing an optical component, including ophthalmic lenses without the need to apply an abrasive slurry.

First claim

Opening claim text (preview).

What is claimed is: 1. A coated abrasive product comprising: a backing; a cured abrasive composition, and a supporting substrate, wherein the cured abrasive composition comprises polymeric resin, abrasive aggregates, a crosslinking agent, and a thixotropic agent wherein the abrasive aggregates are green, unfired and have a generally spheroidal or toroidal shape and are formed from a composition comprising abrasive grit particles and a nanoparticle binder, and wh…

Assignees

Inventors

Classifications

  • Chemistry & Metallurgy · mapped topic

  • Operations & Transport · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • B24D3/28Primary

    Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US8968435B2 cover?
A coated abrasive product including green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder, wherein the abrasive aggregates are dispersed within a polymer resin coating, and wherein the coated abrasive product is capable of polishing an optical component, including …
Who is the assignee on this patent?
Manning James J, Sternberg Mark E, Wang Jianna, and 2 more
What technology area does this patent fall under?
Primary CPC classification B24D3/28. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 03 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).