1
Glenn R Himes, Bridget A Spence, Ronald J Hoxmeier, Steven S Chin: Dissimilar arm asymmetric radial or star block copolymers for adhesives and sealants. Shell Oil Company, Donald F Haas, February 28, 1995: US05393841 (23 worldwide citation)

Radial or star asymmetric block copolymer of the following formulae and improved adhesive and sealant compositions containing them


2
Glenn R Himes, Bridget A Spence, Ronald J Hoxmeier, Steven S Chin: Dissimilar arm asymmetric radical or star block copolymers for adhesives and sealants. Shell Oil Company, Donald F Haas, January 23, 1996: US05486574 (17 worldwide citation)

Radial or star asymmetric block copolymer of the following formulae and an improved tape assembly using the copolymers and improved adhesive and sealant compositions containing them


3
Ronald J Hoxmeier, Robert C Job, Bridget A Spence, Donna A DuBois: Process for making graft block copolymers by grafting anionic polymer chains onto functionalized polyolefins. Shell Oil Company, Donald F Haas, August 27, 1996: US05550194 (16 worldwide citation)

A graft block copolymer is comprised of a saturated olefinic backbone with pendent anionic polymer side chains. The polymer is produced by copolymerizing an .alpha.--olefin with a 1-alkenyl monomer containing a functional group to which an anionically polymerized polymer can be grafted to produce gr ...


4
Ronald J Hoxmeier, Robert C Job, Bridget A Spence, Donn A DuBois: Process for making graft block copolymers by growing anionic polymer chains from functionalized polyolefin backbones. Shell Oil Company, Donald F Haas, August 6, 1996: US05543458 (15 worldwide citation)

A graft block copolymer is comprised of a completely saturated olefinic backbone with pendant anionic polymer side chains. The polymer is produced by copolymerizing an .alpha.-olefin with a monomer which contains a functional group which can be metallated so an anionic monomer can be polymerized the ...


5
Ronald J Hoximeier, Bridget A Spence, Steven S Chin: Method for preparing asymmetric radial copolymers having four first arms and two second arms. Shell Oil Company, Keith M Tackett, November 29, 1994: US05369175 (14 worldwide citation)

A method for preparing asymmetric radial polymers wherein the different polymeric arms are contacted sequentially with a coupling agent. The method narrows the relative arm distribution of the several asymmetric radial polymers produced and significantly increases the amount of total product having ...


6
Bridget A Spence, Ronald J Hoxmeier, Glenn R Himes: Method for producing asymmetric radial polymers. Shell Oil Company, Donald F Haas, September 3, 1996: US05552493 (13 worldwide citation)

The present invention is a process for producing predominately four-armed asymmetric radial block copolymers which contain predominately, on average, two arms which are copolymers of at least one conjugated diene and at least one vinyl aromatic hydrocarbon and two conjugated diene homopolymer or cop ...


7
Ronald J Hoxmeier, Bridget A Spence: Method for producing asymmetric radial polymers. Shell Oil Company, Donald F Haas, September 5, 1995: US05447995 (10 worldwide citation)

A method for producing asymmetric radial polymers which comprises anionically polymerizing an anionically polymerizable monomer to form a first set of living polymer arms, coupling the first set of living polymer arms with a silicon-based coupling agent, substantially completing the coupling reactio ...


8
Glenn R Himes, Bridget A Spence, Ronald J Hoxmeier, Steven S Chin: Dissimilar arm asymmetric radial or star block copolymers for adhesives and sealants. Shell Oil Company, March 11, 1997: US05610238 (9 worldwide citation)

Radial or star asymmetric block copolymer of the following formulae and improved adhesive and sealant compositions containing them


9

10
Ronald J Hoxmeier, Bridget A Spence, Steven S Chin, Michael A Masse: Method for producing statistically coupled asymmetric radial polymers. Shell Oil Company, Donald F Haas, August 29, 1995: US05446093 (3 worldwide citation)

A process is disclosed for producing six-armed and eight-armed asymmetric radial block copolymers. The process comprises anionically polymerizing a diene and/or a vinyl aromatic hydrocarbon to create living polydiene and/or vinyl aromatic hydrocarbon arms, sequentially anionically polymerizing a vin ...



Click the thumbnails below to visualize the patent trend.