The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 13, 1996

Filed:

Dec. 23, 1994
Applicant:
Inventors:

Isao Suzuki, Fuji, JP;

Sunao Matsushima, Fuji, JP;

Yoshikazu Kubota, Fuji, JP;

Masayasu Kamijyou, Fuji, JP;

Assignee:

Kohjin Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428211 ; 428 15 ; 428207 ; 428323 ; 428402 ; 4284111 ; 4284735 ; 428511 ; 156 61 ; 162146 ;
Abstract

Inorganic or organic particles have been used in the past as paper additives for hot-pressed forms to impart the pattern of granite thereto, but when these are boiled in hot water, for example, an uncountable number of small blisters result, lowering the commercial value of the product; however, according to the present invention it is possible to obtain an additive for forming patterns by grinding to desired particle sizes colored paper which has undergone water-resistance treatment with a thermosetting resin, and by selecting the color of the colored paper, a pattern may be selected as desired having spots of any desired color or size. With patterned paper manufactured by adding these paper additives during the paper manufacturing process, there is no occurrence of the above mentioned blisters and a clear pattern may be formed, and therefore hot-pressed forms utilizing have a natural granite image.


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