Daniel J. Arriola - Midland MI, US Brian A. Jazdzewski - Midland MI, US Francis J. Timmers - Midland MI, US Paul C. Vosejpka - Midland MI, US Nicole L. Wagner - Midland MI, US Brian G. Landes - Midland MI, US Guenter A. Jueptner - Hammah, DE David H. Bank - Midland MI, US Timothy T. Wenzel - Midland MI, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
C08F 8/00
US Classification:
525192, 525195
Abstract:
A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0. 001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0 C. and having from 0. 001 to 5 mole percent unsaturation.
Production Of Metathesis Products By High Melting Polymer Segment Interchange
Daniel J. Arriola - Midland MI, US Brian A. Jazdzewski - Midland MI, US Francis J. Timmers - Midland MI, US Paul C. Vosejpka - Midland MI, US Nicole L. Wagner - Midland MI, US Brian G. Landes - Midland MI, US Guenter A. Jueptner - Hammah, DE David H. Bank - Midland MI, US Timothy T. Wenzel - Midland MI, US
International Classification:
C08F 8/00 C08F 4/80 C08F 4/72
US Classification:
525195, 525192, 526170, 526171, 526172
Abstract:
Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0. 001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100 C. are cross-metathesized to form thermoplastic elastomers having improved performance properties.
Production Of Meta-Block Copolymers By Polymer Segment Interchange
Daniel J. Arriola - Midland MI, US Francis J. Timmers - Midland MI, US Brian A. Jazdzewski - Midland MI, US Paul C. Vosejpka - Midland MI, US Nicole L. Wagner - Midland MI, US Brian G. Landes - Midland MI, US Guenter A. Jueptner - Hammah, DE David H. Bank - Midland MI, US Timothy T. Wenzel - Midland MI, US
International Classification:
C08F 8/00 C08F 4/72 C08F 4/80
US Classification:
525195, 525192, 526171, 526170, 526172
Abstract:
Meta-block copolymers and a process for preparing a product mixture comprising meta-block copolymers by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more ethylenically unsaturated polymers, said unsaturation defining one or more polymer segments in each ethylenically unsaturated polymer, at least one polymer segment in at least one ethylenically unsaturated polymer being chemically distinguishable from at least one polymer segment in at least one other ethylenically unsaturated polymer, characterized in that each meta-block copolymer in the product mixture comprises a random distribution of said chemically distinguishable polymer blocks.
Method Of Integrating A Porous Dielectric In An Integrated Circuit Device
Dorie Yontz - Midland MI, US Jerry Hahnfeld - Midland MI, US Brian Landes - Midland MI, US Sebring Lucero - Freeland MI, US Daniel Castillo - Freeland MI, US Kacee Ouellette - Midland MI, US Theodore Stokich - Midland MI, US
International Classification:
B05D003/02 B05D001/36
US Classification:
427/372200, 427/402000
Abstract:
The present invention is a method which provides flexibility and convenience in integration of porous dielectric materials without any substantial sacrifice in quality of the porous dielectric material formed during the process. This method enables one to create multilayer stacks that include embedded porous layers without having to remove the substrate being coated from the spin track between applications of the various layers and without deterioration in pore morphology in the porous layers.
Process For The Preparation Of Fibers Of Syndiotactic Vinylaromatic Polymers
Stephen J. Nolan - Saginaw MI Mark F. Sonnenschein - Midland MI Craig J. Carriere - Midland MI Brian G. Landes - Midland MI Robert P. Brentin - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
D01D 516 D01F 622
US Classification:
2642107
Abstract:
Fibers of syndiotactic vinylaromatic polymers are prepared in an improved process comprising: A) heating the polymer to a temperature above its crystalline melting point; B) extruding the molten polymer through a multiplicity of orifices in a spinnerette to form fibers; C) drawing the fibers at a spin/draw ratio from 120:1 to 5000:1; and D) cooling the fibers to ambient temperature.