Paul F Dunlap

US Patent:

20100330352, Dec 30, 2010

Filed:

Jun 30, 2009

Appl. No.:

12/494951

Inventors:

Yuding Feng - Rochester Hills MI, US
Lin Zhu - Rochester Hills MI, US
Yahya Hodjat - Oxford MI, US
Paul N. Dunlap - Englewood CO, US

Assignee:

Gates Corporation - Denver CO

International Classification:

B32B 27/32
B32B 37/12
B32B 37/14

US Classification:

428220, 156325, 15624424, 428519

Abstract:

A bonded part with a press-fit, vulcanized rubber member residing in compression between two rigid members and bonded thereto. The rubber member is a laminate with a core layer sandwiched between and bonded to two self-bonding rubber layers. The bonded part may be, for example, a vibration damper, isolator or absorber. The core layer and the self-bonding layers may have the same primary elastomer and cure system type, and the self-bonding layers have an adhesion promoter not present in the core layer. The adhesive layers may be from 0.05 to 1 mm thick or from 5% to 10% of the laminate thickness.The method includes forming a rubber core layer, curing it, applying a rubber adhesive layer on each side to form a laminate, inserting the laminate between two rigid members under compression, and post-curing to form a bonded part. The adhesive layers may be partially cured before inserting.

US Patent:

20150290918, Oct 15, 2015

Filed:

Jun 24, 2015

Appl. No.:

14/749181

Inventors:

- Denver CO, US
Lin Zhu - Rochester Hills MI, US
Yahya Hodjat - Oxford MI, US
Paul N. Dunlap - Parker CO, US

International Classification:

B32B 37/24
C08J 3/24
B32B 38/00
B32B 37/15
B32B 37/12
B32B 37/10
C08J 5/12
B32B 37/18

Abstract:

A method of forming a bonded part with a press-fit, vulcanized rubber member residing in compression between two rigid members and bonded thereto. The rubber member is a laminate with a core layer between two self-bonding rubber layers. The bonded part may be, for example, a vibration damper, isolator or absorber. The core layer and the self-bonding layers may have the same primary elastomer and cure system type, and the self-bonding layers have an adhesion promoter not present in the core layer. The adhesive layers may be from 0.05 to 1 mm thick or from 5% to 10% of the laminate thickness.The method includes forming a rubber core layer, curing it, applying a rubber adhesive layer on each side to form a laminate, inserting the laminate between two rigid members under compression, and post-curing to form a bonded part. The adhesive layers may be partially cured before inserting.