3m Innovative Properties Company

Binhong Lin

Mario Alberto Perez

Michael A Kropp

Eumi Pyun

Matthew J Kryger

Erik M Townsend

Kelly A Volp

Li Yao

Kalc C Vang

Yangbin Chen

An article comprises a substrate having a first portion comprising at least one of a metal or a ceramic metal oxide. A composite foam is bonded to the metal or ceramic metal oxide. The composite foam comprises: at least one polymer preparable by ring-opening metathesis polymerization; at least one catalyst for the ring-opening metathesis polymerization; at least one difunctional coupling agent represented by Z—X—Z. Each Z independently represents a group that is chemically reactive with at least one of the chemically bound surface hydroxyl groups thereby forming at least one covalent bond. Each X independently represents a divalent organic linking group having a number average molecular weight of 500 to 10000 grams per mole; and at least one of hollow glass microspheres or expanded polymeric microspheres. A method of making the article is also disclosed.

Article and method of making the same

A composition is described comprising a ring opening metathesis polymerization catalyst or precatalyst thereof; and an unreactive dispersant having a viscosity at 25° C. of at least 10 Pa·sec at a shear rate of 1 1/sec. Also described is a cartridge (e.g. or a dispensing and mixing apparatus) comprising such composition. The cartridge typically comprises a first chamber comprising unpolymerized cyclic olefin; and a second chamber comprising the catalyst and dispersant. Also described are compositions including two-part compositions and methods of bonding a substrate.

Compositions comprising romp catalyst and dispersant, cartridges, and methods

A composition is described comprising a cyclic olefin; a ring opening metathesis polymerization catalyst; and at least 40 wt. % of thermally conductive particles. The thermally conductive particles are selected such that the composition after curing has a thermal conductivity of at least 1W/M*K. In one embodiment, the thermally conductive particle comprises a combination of smaller and larger thermally conductive particles. In another embodiment, the thermally conductive particles comprise boron nitride particles. Also described are (e.g. structural) adhesives, methods of bonding and articles.

Compositions comprising cyclic olefins and thermally conductive filler

Adhesive composition and articles are described comprising a carrier substrate (e.g. release liner or backing) and an adhesive composition disposed on the carrier substrate. The adhesive composition comprises at least 20 wt. % of a polymer; unpolymerized cyclic olefin; and a (e.g. latent) ring opening metathesis polymerization catalyst or precatalyst thereof. The polymer may have a Tg less than 25° C. and/or may be an acrylic polymer. Also described is a method of bonding.

Growing community of inventors

Woodbury, MN, United States of America

Binhong Lin