3m Innovative Properties Company

Other

Dyneon Gmbh

Erik D Hare

Klaus Hintzer

Allan T Worm

William D Coggio

Peter J Scott

Zai-Ming Qiu

George G I Moore

Miguel Antonio Guerra

Tatsuo Fukushi

Werner Schwertfeger

Robert E Kolb

Alain G Verschuere

Harald Kaspar

Werner M A Grootaert

Greggory S Bennett

Jay F Schulz

Guy Van Gool

Franz M&auml;rz

Paul N Nelson

Zai-Ming Qui

Alain Verschuere

A component of a fuel management system having a surface that in use will come into contact with fuel. The surface includes a fluoroelastomer layer. The fluoroelastomer layer comprises a hydrotalcite compound dispersed therein.

Fuel management system comprising a fluoroelastomer layer having a hydrotalcite compound

A compound is prepared, suitable for forming fluoroelastomers, having the unique features of a low glass transition temperature and desirable permeation resistance. The compound generally comprises two primary components. The first component is an amorphous copolymer including interpolymerized units derived from one or more perfluorinated ethers. The second component is a curable component including at least one filler having at least 10 parts per 100 parts of the first component. Upon vulcanization the resulting elastomeric compound has desirable physical characteristics as indicated by the durometer, the retraction at lower temperatures (TR-10) and permeation resistance.

Fluoroelastomers with improved permeation resistance and method for making the same

A composition and method for making a fluoroelastomer is disclosed. The composition comprises a fluoroelastomer containing chlorine and an organic compound containing at least an hydride function. The hydride function has the formula MH where M is Si, Ge, Sn or Pb.

Composition and method for making a fluoroelastomer

The present invention provides a curable composition comprising a fluoropolymer comprising interpolymerized units derived from (i) CF &boxH;CF&mdash;R , wherein R is fluorine or a C -C perfluoroalkyl, (ii) at toast about 10 mole percent of a hydrogen-containing C -C olefin, based on the total moles of said CF &boxH;CFR and said olefin, (iii) an average of two or more bromine atoms including one or more terminal bromine atom(s) per fluoropolymer chain, (iv) optionally CX &boxH;CX&mdash;R, wherein each X is independently H, F, or Cl and R is a halogen or a C -C alkyl or alkenyl group that may include one or more ether linkage(s), (v) optionally a bromine-containing cure site monomer; (b) optionally, a peroxide curing agent; and (c) optionally, a crosslinking co-agent. The invention also provides methods of making and using such fluoropolymer compositions.

Curable fluoropolymers containing bromine groups having improved compression set

Perfluoroelastomers having a low glass transition temperature and method of making them

Curable fluoroelastomer compositions comprising hydro siloxanes or hydro silazanes

The present invention describes a novel process for the preparation of perfluoro allyl ethers. The process involves providing a hydrogen-containing precursor comprising at least one 1,2-dichloro alkyl ether moiety, fluorinating the precursor to provide a perfluorinated intermediate, and dechlorinating the perfluorinated intermediate to the corresponding perfluorinated ether. A reaction product of a perfluorinated olefin and an allyl ether may also be used as a precursor. Such a reaction product is chlorinated before the fluorination step. Perfluoro vinyl or allyl ethers may be used in place of the perfluorinated olefin. Novel perfluoro alkoxy compounds are also described.

Fluorine containing allylethers and higher homologs

The present invention describes a novel process for the preparation of perfluorovinyl ethers. The process involves providing a hydrocarbon precursor that may be partially halogenated, fluorinating the precursor to provide a perfluorinated intermediate, and converting the perfluorinated intermediate to the desired perfluorinated ether. Novel perfluorovinyl ethers are also provided.

Fluorine containing vinyl ethers

Compositions and techniques useful to effectively recycle crosslinked (i.e., vulcanized or cured) fluoroelastomers are disclosed. The invention utilizes an additive system that includes a cure-enhancing additive, a crosslinking agent, and an accelerator.

Recycle of vulcanized fluorinated elastomers

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Saint Paul, MN, United States of America

Erik D Hare