3M Innovative Properties Company

Takujiro Yamabe

Towako Takeishi

Mark J Williams

Stephen E Amos

Robert W Hunter

Ronald J Israelson

Kyoko Takakuwa

A thermoplastic resin composite with improved specific flexural strength, and a molded body containing the thermoplastic resin composite. A thermoplastic resin composite containing a resin component which is a polyamide resin or polypropylene resin, and hollow glass microspheres, wherein the hollow glass microspheres are surface treated with from 0.5 to 3 mass % of a silane coupling agent and from 1 to 5 mass % of a synthetic resin emulsion, based on 100 mass % of hollow glass microspheres.

Thermoplastic resin composite containing hollow glass microsheres

The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.

Glass bubbles, composites therefrom, and method of making glass bubbles

Growing community of inventors

Kanagawa, Japan

Takujiro Yamabe