Thermoplastic resin laminate

Details Thermoplastic resin laminate Thermoplastic resin laminate

1997-09-17

2002-08-27

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S420000, C428S421000, C525S199000, C525S200000

Reexamination Certificate

active

06440511

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a thermoplastic resin laminate produced by firmly bonding two layers composed respectively of different types of thermoplastic resins which are not bonded each other.
RELATED ART
As a conventional laminating method of bonding two layers composed respectively of a thermoplastic resin A and a thermoplastic resin B, which are not. bonded each other, for example, a method of chemically modifying the surface and a method of physically modifying the surface by means of sputtering, corona discharge, plasma, excimer laser, etc. are known. These methods had a problem that an interlaminar bonding force is small although a special processing device is required. Furthermore, in order to obtain a resin laminate, a successive melt molding is required and therefore the number of steps at the time of molding increases, which results in poor processing productivity.
Even if a simultaneous co-extrusion method is used, it was limited to a co-extrusion method using a thermoplastic resin C which is bonded to both thermoplastic resin A and thermoplastic resin B.
SUMMARY OF THE INVENTION
The present invention provides a thermoplastic resin laminate comprising at least three thermoplastic resin layers, wherein an intermediate layer interposed between a first layer comprising a thermoplastic resin A
1
and a second layer comprising a thermoplastic resin B
1
, which are not bonded each other, comprises a thermoplastic resin composition which comprises as a main component a thermoplastic resin A
2
having a bonding property to the thermoplastic resin A
1
and a thermoplastic resin B
2
having a bonding property to the thermoplastic resin B
1
and forms a dispersion structure, wherein the thermoplastic resin A
2
forms a continuous phase and the thermoplastic resin B
2
forms a dispersed phase in the intermediate layer at the vicinity of the interface between the intermediate layer and the first layer, and wherein the thermoplastic resin B
2
forms the continuous phase and the thermoplastic resin A
2
forms the dispersed phase in the intermediate layer at the vicinity of the interface between the intermediate layer and the second layer.
According to the present invention, a firm bonding strength can be accomplished between the first layer of the thermoplastic resin A
1
and the second layer of the thermoplastic resin B
1
.


REFERENCES:
patent: 4886689 (1989-12-01), Kotliar et al.
patent: 5441782 (1995-08-01), Kawashima et al.
patent: 5716684 (1998-02-01), Stoeppelmann et al.
patent: 0523644 (1993-01-01), None
patent: 0642921 (1995-03-01), None
patent: 62 58615 (1987-12-01), None
patent: 63-275644 (1988-11-01), None
patent: 4 224939 (1992-08-01), None
patent: 5 60422 (1993-09-01), None
patent: 7 164602 (1995-06-01), None
patent: 7 173447 (1995-07-01), None
Japanese Publication No. 63-275644 A; published Nov. 14, 1988—Abstract Only.

Affiliated with

Also associated with

Rating

Thermoplastic resin laminate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoplastic resin laminate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoplastic resin laminate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2975477