3m Innovative Properties Company

Robert W Hunter

Baris Yalcin

Ibrahim S Gunes

Audrey A Sherman

Mark J Williams

Stephen E Amos

Adriana Paiva

Andrew S D'Souza

Maria B Urquiola

Towako Takeishi

Takujiro Yamabe

Ronald J Israelson

Jean-Marie Ruckebusch

Andrew S D'SOUZA

A composition includes poly(4-methylpent-1-ene) and hollow glass microspheres. The composition has a density of less than 0.8 grams per cubic centimeter. Articles made from the composition and methods of making an article by injection molding the composition are also disclosed.

Poly (methylpentene) composition including hollow glass microspheres and method of using the same

Siloxane-based pipe coatings include a hot melt processable siloxane-based elastomeric polymer, and may optionally contain fillers and additives. The siloxane-based elastomeric polymer is a urea-containing segmented copolymer or an oxamide-containing segmented copolymer. The coatings are substantially free of tackifying resins and are non-tacky and non-adhesive until heated to a temperature of at least 50 C.

Siloxane-based pipe coatings

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

An insulated article having a first insulation region comprising a first polymeric material and first hollow ceramic microspheres and a second insulation region comprising a second polymeric material and second hollow ceramic microspheres. The first insulation region has a thermal conductivity that is no greater than the thermal conductivity of the first polymeric material and a volumetric heat capacity in a range of 60% to 90% of the volumetric heat capacity of the first polymeric material. The second insulation region has a thermal conductivity that is no greater than 90% of the thermal conductivity of the second polymeric material and a volumetric heat capacity that is less than 60% of the volumetric heat capacity of the second polymeric material. A method for making a composition for insulating an article is also described.

Microphere-containing insulation

Aqueous fluids comprising polysaccharide, dissolved salt, and borate anions. The fluids are useful, for example, as a drilling fluid.

Aqueous fluid and method of making and using the same

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Burnsville, MN, United States of America

Robert W Hunter