Primer for adhesive sheets, article attached with an...

Details Primer for adhesive sheets, article attached with an... Primer for adhesive sheets, article attached with an...

2002-10-28

2008-03-04

Tran, Thao (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

C428S412000, C428S422000, C428S423100, C428S480000, C428S500000, C521S115000, C521S116000

Reexamination Certificate

active

07338713

ABSTRACT:
A primer for adhesive sheets which comprises as a main component thereof an oligomer comprising a reaction product of a portion of an isocyanurate compound which is a trimer of tolylene diisocyanate and a polyol and has a number-average molecular weight in a range of 700 to 50,000; an article comprising an adhesive sheet attached to an adherend using a layer of the above primer as the intermediate layer; a process for producing an article attached with an adhesive sheet which comprises coating an adherend with the primer and attaching the adhesive sheet to the article when 1 minute to 24 hours has passed after the coating. Peeling and displacement of the adhesive sheet can be prevented and excellent properties can be maintained even when the adhesive sheet is attached to an article in a short time after the article is coated with the primer.

REFERENCES:
patent: 3437500 (1969-04-01), Hennig et al.
patent: 4443519 (1984-04-01), Donermeyer et al.
patent: 5130402 (1992-07-01), Akiyama et al.
patent: 5204409 (1993-04-01), Arend et al.
patent: 5916941 (1999-06-01), St. Clair
patent: 6284708 (2001-09-01), Oshima et al.
patent: 0 499 113 (1992-08-01), None
patent: 2001262114 (2001-09-01), None
patent: WO 90/13416 (1990-11-01), None

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