Process for making PU air permeable nubuck sheets

Details Process for making PU air permeable nubuck sheets Process for making PU air permeable nubuck sheets

1999-06-08

2000-04-25

Dudash, Diana

Coating processes

Removable protective coating applied

Organic base

427246, 427209, 427354, 427359, 427369, 427381, 427412, 156 77, 156 78, 156 79, B32B 3114, B32B 3116, B05D 312, B05D 138

Patent

active

060541768

ABSTRACT:
A process for making PU air permeable nubuck sheets includes coating a separable release substrate material such an cloth, plastics, or paper with a polyurethane (PU) resin preparation before disposing the same in an impregnation tank to allow the PU resin to congeal into a sheet of minute pores attached to the release substrate material. The release substrate material together with the sheet is soaked in a wash tank to rinse off residual dimethyformamide (DMP) A beck surface of the release substrate material is coated with a water soluble resin (which may later dissolve in water and then be rinsed off) and the release substrate material is put into an oven to dry and then removed to a grinder for processing into a nubuck sheet with the feel and visual characteristics of real nubuck. The nubuck sheet is washed in a wash tank to rinse off the water soluble resin, dried, subjected to surface finishing, and than separated from the release substrate material to obtain a PU air permeable nubuck sheet.

REFERENCES:
patent: 3393083 (1968-07-01), Go
patent: 3619315 (1971-11-01), Carrack et al.
patent: 3632842 (1972-01-01), Forrest
patent: 3696180 (1972-10-01), Cunningham et al.
patent: 3845182 (1974-10-01), Biskup et al.
patent: 3951593 (1976-04-01), Wojdasiewicz et al.
patent: 3979532 (1976-09-01), Muck et al.
patent: 4003777 (1977-01-01), Eddy
patent: 4046504 (1977-09-01), Fukushima
patent: 4157424 (1979-06-01), Boutle
patent: 4165556 (1979-08-01), Nishida et al.
patent: 4171391 (1979-10-01), Parker
patent: 4206257 (1980-06-01), Fukushima et al.
patent: 4271217 (1981-06-01), Tanaka et al.
patent: 4304812 (1981-12-01), Perkins
patent: 4318949 (1982-03-01), Okamoto et al.
patent: 4349597 (1982-09-01), Fine et al.
patent: 4431687 (1984-02-01), Fottinger et al.
patent: 4487642 (1984-12-01), Takashima et al.
patent: 4539056 (1985-09-01), Takeshita et al.
patent: 4587142 (1986-05-01), Huguchi et al.
patent: 4675211 (1987-06-01), Thoma et al.
patent: 5151240 (1992-09-01), Asano et al.
patent: 5393600 (1995-02-01), Omura et al.
patent: 5753351 (1998-05-01), Yoshida et al.
patent: 5922445 (1999-07-01), Yoshida et al.

Affiliated with

Also associated with

Rating

Process for making PU air permeable nubuck sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for making PU air permeable nubuck sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making PU air permeable nubuck sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-991534