Abrasive article with hydrophilic/lipophilic coating
Assignee3M Innovative Properties Company
InventorsPei-Jung Chen, Robert F. Smith, Wei Gang Huang
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Abstract
An abrasive article comprising a backing material having first and second opposed major surfaces and an abrasive layer comprising abrasive particles and binder secured to the said first major surface, the article also bearing a hydrophilic/lipophilic urethane material to enhance dimensional and conformational stability of the abrasive article.
Claims17
An abrasive article comprising a backing material having first and second opposed major surfaces and an abrasive layer comprising abrasive particles and binder secured to the said first major surface, the article also bearing a hydrophilic/lipophilic urethane material to enhance dimensional and conformational stability of the abrasive article, wherein the hydrophilic/lipophilic urethane material is selected from the group consisting of
- a) products of reaction of a polyisocyanate, a polyethylene oxide and a long chain aliphatic alcohol, in admixture with a polymer derived from acrylic acid or an α- or β-substituted acrylic acid, and
- b) polymers with an ethylene-containing backbone bearing urethane-linked nitrogen-bonded hydrocarbon groups and oxygen-linked water solubilizing groups.
A process for preparing a coated abrasive article which comprises applying a hydrophilic/lipophilic urethane material onto a major surface of an abrasive article to form the coated abrasive article, wherein the urethane material is selected from the group consisting of:
- a) products of reaction of a polyisocyanate, a polyethylene oxide and a long chain aliphatic alcohol, in admixture with a polymer derived from acrylic acid or an α- or β-substituted acrylic acid, and
- b) a co-polymer with an ethylene-containing backbone, bearing urethane-linked nitrogen-bonded hydrocarbon groups and oxygen-linked water solubilizing groups.
Dependencies are inferred from the claim text.