Layered sheets and processes for producing the same

Details Layered sheets and processes for producing the same Layered sheets and processes for producing the same

2011-04-19

2011-04-19

Parker, Frederick J (Department: 1712)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C427S244000, C427S355000, C427S385500, C427S393500

Reexamination Certificate

active

07927452

ABSTRACT:
Provided herein is a process for producing a layered sheet. The process involves preparing a cell dispersed urethane composition by a mechanical foaming method. The cell dispersed urethane composition is applied to a base material sheet and cured to produce a polyurethane foam layer of uniform thickness. A releasing sheet may be utilized to make the thickness of the polyurethane foamed layer uniform. Also, provided herein is a layered sheet produced by the above process. The polyurethane foamed layer may have spherical fine cells having an average cell diameter of 20 to 300 μm. The polyurethane foamed layer may have a specific gravity of 0.2 to 0.5. The polyurethane foamed layer may also have a Asker C hardness of 10 to 50 degrees.

REFERENCES:
patent: 3049463 (1962-08-01), Kallander et al.
patent: 4216177 (1980-08-01), Otto
patent: 5409770 (1995-04-01), Netsu et al.
patent: 5607982 (1997-03-01), Heyman et al.
patent: 60-042431 (1985-03-01), None
patent: 4-202215 (1992-07-01), None
patent: 5-329852 (1993-12-01), None
patent: 06-023664 (1994-02-01), None
patent: 6-262633 (1994-09-01), None
patent: 11-207758 (1999-08-01), None
patent: 2002-060452 (2002-02-01), None
patent: 2002-355754 (2002-12-01), None
patent: 2003-304951 (2003-10-01), None
patent: 2004-002788 (2004-01-01), None
patent: 2004-188716 (2004-07-01), None
International Search Report, mailed on Sep. 26, 2006, directed to counterpart International Application No. PCT/JP2006/313597. 5 pages.
Chinese Office Action mailed Dec. 18, 2009, directed to counterpart Chinese Application No. 2006800259433; 11 pages.

Affiliated with

Also associated with

Rating

Layered sheets and processes for producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Layered sheets and processes for producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Layered sheets and processes for producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2693298