04512813 is referenced by 41 patents and cites 15 patents.

The monourea adduct of sulfuric acid, when combined with water, has the unique ability to ablate the surface of wooden articles without charring or otherwise disfiguring the surface of the wooden article. Thus, wooden articles can be treated to accomplish a variety of purposes by contacting the surface to be treated with a composition containing the monourea adduct of sulfuric acid. Such compositions comprise mixtures of urea and sulfuric acid in which the molar ratio of urea to sulfuric acid is within the range of 1/4 to about 7/4 so that at least about 25 percent of the sulfuric acid is present as the monourea adduct. Such treatment can be employed to modify the dimensions of the article surface, remove stains, mars or other markings, accentuate the hard grain of the article surface, emboss the surface with a predetermined pattern, or accomplish other objectives that result from generally or selectively ablating the article's surface.

Title
Method for treating wooden articles
Application Number
453496
Publication Number
4512813
Application Date
April 7, 1983
Publication Date
April 23, 1985
Inventor
Donald C Young
Fullerton
CA, US
Agent
Michael H Laird
Gregory F Wirzbicki
Dean Sandford
Assignee
Union Oil Company of California
CA, US
IPC
B29C 17/08
B08B 3/08
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