A process for producing a multivalent cation containing copolymer, containing: contacting a multivalent cation containing ethylenically unsaturated acid and at least one comonomer to produce a monomer mixture comprising the multivalent cation containing ethylenically unsaturated acid present in an amount in the range of from about 5% to about 65% by weight; and contacting the monomer mixture with a redox initiator comprising a reducing compound and an oxidising compound and contacting the monomer mixture with a thermal initiator to cause the multivalent cation containing ethylenically unsaturated acid and the at least one comonomer to react to produce the multivalent cation containing copolymer, wherein the thermal initiator is used in the range 100 to 5000 ppm.

The invention provides a class of block copolymers having a plurality of chemically different blocks, at least a portion of which incorporating polymer side chain groups having a helical secondary structure. The invention also provides structures generated by self-assembly of polymer blends including at least one block copolymer component, such as a brush block polymer or wedge-type block polymer. The invention provides, for example, periodic nanostructures and microstructures generated by self-assembly of block copolymers and polymer blends comprising a mixture of at least one block copolymer component, such as a brush block copolymer, and at least a second component.

Provided is a fluorine-containing copolymer composition capable of forming a uniform coating.

The composition comprises a fluorine-containing copolymer having units derived from tetrafluoroethylene, units derived from ethylene, and 0.4 to 1.0 mol % of at least one functional group selected from the group consisting of a carbonyl group-containing group, an acid anhydride group, a carboxy group, a hydroxy group, an epoxy group, an amide group, an amino group, and an isocyanate group, and an aliphatic compound having 6 to 10 carbon atoms having one carbonyl group.

Provided is a fluorine-containing copolymer composition capable of forming a uniform coating.

The composition comprises a fluorine-containing copolymer having units derived from tetrafluoroethylene, units derived from ethylene, and 0.4 to 1.0 mol % of at least one functional group selected from the group consisting of a carbonyl group-containing group, an acid anhydride group, a carboxy group, a hydroxy group, an epoxy group, an amide group, an amino group, and an isocyanate group, and an aliphatic compound having 6 to 10 carbon atoms having one carbonyl group.

Various vinyl addition polymers of nadic anhydride are disclosed. Examples of such polymers include copolymers and terpolymers of nadic anhydride with a wide variety of norbornene-type monomers. The nadic anhydride polymers are found to be useful in forming a wide variety of photosensitive compositions, both positive and negative, which are capable of forming high resolution imagable films exhibiting excellent dielectric properties (low-k) and thermal properties, and thus are useful in the fabrication of a variety of microelectronic and optoelectronic devices, among others.

Various vinyl addition polymers of nadic anhydride are disclosed. Examples of such polymers include copolymers and terpolymers of nadic anhydride with a wide variety of norbornene-type monomers. The nadic anhydride polymers are found to be useful in forming a wide variety of photosensitive compositions, both positive and negative, which are capable of forming high resolution imagable films exhibiting excellent dielectric properties (low-k) and thermal properties, and thus are useful in the fabrication of a variety of microelectronic and optoelectronic devices, among others.

A method of producing a sliane cross-linked polyethylene is disclosed which includes maleating a polyethylene polymer to form a maleated polyethylene and reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene. The method further includes treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.

Provided is a polymer composition that can be molded while having excellent resistance to wet heat whitening and suppressing yellowness. A polymer composition comprising: (A) a polymer comprising 0.01 mol % or more and 10 mol % or less of a ring structural unit with respect to a total of the ring structural unit and a monomer unit other than the ring structural unit; and (B) 0.1 ppm by mass or more and 2 ppm by mass or less of alkali metal and/or alkaline earth metal with respect to the whole polymer composition.

Provided is a polymer composition that can be molded while having excellent resistance to wet heat whitening and suppressing yellowness. A polymer composition comprising: (A) a polymer comprising 0.01 mol % or more and 10 mol % or less of a ring structural unit with respect to a total of the ring structural unit and a monomer unit other than the ring structural unit; and (B) 0.1 ppm by mass or more and 2 ppm by mass or less of alkali metal and/or alkaline earth metal with respect to the whole polymer composition.

To provide a fluororesin laminate in which a layer of a fluorinated copolymer and a layer of a propylene polymer excellent in heat resistance are strongly attached.

A laminate comprising a layer which contains a fluorinated copolymer having an adhesive functional group and having monomer unit based on tetrafluoroethylene and monomer units based on ethylene, and a layer which contains a propylene polymer having an adhesive functional group.