Covestro LLC

Covestro Deutschland Ag

Anthony R Loveday

Rick L Adkins

Usama E Younes

Jack R Reese

James Leonard Lambach

Edward P Browne

David P Zielinski

Richard Raul Romero

Ray Joseph Anderson

Eloy C Martinez

Liang Chen

Jose F Pazos

Brandon W Parks

Alan D Bushmire

Sharlene A Lewis

Daniel R Wagner

Jenna L Caputo

Chen Xu

James A Thompson-Colón

Eric M Rexrode

Edward Browne

David Zielinski

Isopropylidenediphenol-based polyether polyols, processes for their production, foams produced using such isopropylidenediphenol-based polyether polyols, such as PUR-PIR rigid foams, as well as to processes for producing such foams. The polyether polyols have an internal block comprising polymerized ethylene oxide moieties and an external cap comprising polymerized propylene oxide moieties.

Isopropylidenediphenol-based polyether polyols, processes for their production, and foams produced therefrom

Processes are described for producing an aromatic diamine-initiated polyether polyol having a measured OH number of 300 to 500 mg KOH/g and a viscosity at 25&#xb0; C. of 5000 to 50,000 mPas. The processes include a first alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with a starter consisting essentially of aromatic diamine at a molar ratio of propylene oxide to aromatic diamine of 1.4:1 to 2.0:1 to form an alkoxylated product; and a second alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with the alkoxylated product, in the presence of an added catalyst, until the ratio of moles of propylene oxide added in the process to the moles of aromatic diamine added in the process is 4:1 to 9:1.

Processes for producing aromatic diamine-initiated polyether polyols

Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.

Polyurethane coating compositions and their use as gel coats

Polyol blends are disclosed that include a saccharide-initiated polyether polyol, an aromatic polyester polyol, and a polyalkylene polyamine-initiated polyether polyol. Also disclosed are foam-forming compositions containing such polyol blends, rigid foams made using such polyurethane foam-forming compositions, and methods for producing such foams, including use of such foams as panel insulation.

Polyol blends and their use in producing PUR-PIR foam-forming compositions

This invention relates to an improved process for the preparation of a high molecular weight polyoxyalkylene polyether polyol by the continuous addition of starter (CAOS) process. This process enables a shorter cycle time while maintaining a low viscosity in high molecular weight polyoxyalkylene polyether polyols.

Process for preparing polyoxyalkylene polyols by the continuous addition of starter

Batch 'water processes' for producing high functionality polyether polyols from polyhydroxyl compounds that are solid at ambient conditions, such as is the case with sucrose, are disclosed. The disclosed processes avoid use of an intermediate dewatering step.

Water processes for producing polyether polyols from solid polyhydroxyl compounds

Processes are described for producing a polycyclic polyether polyol having a hydroxyl functionality of 1.5 to 6 and a number average molecular weight of 200 to 12,000 Da. The processes comprise alkoxylating a polyol starter comprising predominantly a polycyclic polyol with an alkylene oxide in the presence of a DMC catalyst.

Process for producing polycyclic polyether polyols

Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.

Polyether polyol compositions and polyurethane foams formed therefrom

This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.

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Weirton, WV, United States of America

Anthony R Loveday