A method of making an attenuated-light-off post-metallocene catalyst (“attenuated post-metallocene catalyst” or “attenuated P-M catalyst”), the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A1), (B.sup.1), or (C.sup.1): R.sup.5—C≡C—R.sup.6 (A.sup.1), (R.sup.5).sub.2C═C═C(R.sup.6).sub.2 (B.sup.1), or (R.sup.5)(R.sup.7)C═C(R.sup.6)(R.sup.7) (C.sup.1) as defined herein under effective reaction conditions to give an attenuated post-metallocene catalyst that exhibits an attenuated light-off kinetics profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a post-metallocene precatalyst (i.e., an unactivated “coordination entity” or “ligand-metal complex”) of structural formula (I): (D).sub.dM(T).sub.t(Q).sub.q(X).sub.x (I) as defined herein; and related methods, compositions and uses.

A method of making an attenuated-light-off hybrid catalyst, the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A.sup.1), (B.sup.1), or (C.sup.1): R.sup.5—C≡C—R.sup.6 (A.sup.1), (R.sup.5).sub.2C═C═C(R.sup.6).sub.2 (B.sup.1), or (R.sup.5)(R.sup.7)C═C(R.sup.6)(R.sup.7) (C.sup.1) as defined herein under effective reaction conditions to give an attenuated hybrid catalyst that exhibits an attenuated light-off kinetics profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a hybrid precatalyst (i.e., an unactivated “coordination entity” or “ligand-metal complex”) of structural formula (I): (Cp) (L).sub.k(X).sub.x (I) as defined herein; and related methods, compositions and uses.

A method of making an attenuated-light-off hybrid catalyst, the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A.sup.1), (B.sup.1), or (C.sup.1): R.sup.5—C≡C—R.sup.6 (A.sup.1), (R.sup.5).sub.2C═C═C(R.sup.6).sub.2 (B.sup.1), or (R.sup.5)(R.sup.7)C═C(R.sup.6)(R.sup.7) (C.sup.1) as defined herein under effective reaction conditions to give an attenuated hybrid catalyst that exhibits an attenuated light-off kinetics profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a hybrid precatalyst (i.e., an unactivated “coordination entity” or “ligand-metal complex”) of structural formula (I): (Cp) (L).sub.k(X).sub.x (I) as defined herein; and related methods, compositions and uses.

A method of making an attenuated-light-off post-metallocene catalyst, the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A.sup.1), (B.sup.1), or (C.sup.1): R5-C≡C—R.sup.6 (A.sup.1), (R.sup.5).sub.2C═C═C(R.sup.6).sub.2 (B.sup.1), or (R.sup.5)(R.sup.7)C═C(R.sup.6)(R.sup.7) (C.sup.1) as defined herein under effective reaction conditions to give an attenuated post-metallocene catalyst that exhibits an attenuated light-off monomer uptake profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a post-metallocene precatalyst of structural formula (I) as defined herein; and related methods, compositions and uses.

A method of making an attenuated-light-off post-metallocene catalyst, the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A.sup.1), (B.sup.1), or (C.sup.1): R5-C≡C—R.sup.6 (A.sup.1), (R.sup.5).sub.2C═C═C(R.sup.6).sub.2 (B.sup.1), or (R.sup.5)(R.sup.7)C═C(R.sup.6)(R.sup.7) (C.sup.1) as defined herein under effective reaction conditions to give an attenuated post-metallocene catalyst that exhibits an attenuated light-off monomer uptake profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a post-metallocene precatalyst of structural formula (I) as defined herein; and related methods, compositions and uses.

A prepolymerized resin prepared by subjecting a composition to a pre-reaction in the presence of a polymerization inhibitor. The composition at least includes bis(vinylphenyl)ethane and polybutadiene. The polybutadiene has a 1,2-vinyl content of 85% or above and a number average molecular weight of less than 3000, wherein the pre-reaction has a conversion rate of between 30% and 90%. During the pre-reaction, components in the composition are partially crosslinked to leave residual vinyl groups. The composition further includes vinyl-containing polyphenylene ether and has a number average molecular weight of between 4,000 and 12,000.

A prepolymerized resin prepared by subjecting a composition to a pre-reaction in the presence of a polymerization inhibitor. The composition at least includes bis(vinylphenyl)ethane and polybutadiene. The polybutadiene has a 1,2-vinyl content of 85% or above and a number average molecular weight of less than 3000, wherein the pre-reaction has a conversion rate of between 30% and 90%. During the pre-reaction, components in the composition are partially crosslinked to leave residual vinyl groups. The composition further includes vinyl-containing polyphenylene ether and has a number average molecular weight of between 4,000 and 12,000.

The invention herein pertains to a telechelic polyolefin of formula (III) or (IV) and to a process for its preparation,

Z-A-(CH.sub.2).sub.p—B′  (III)

Z-A-(CH.sub.2).sub.p—B  (IV) A being a polymer chain obtained by homopolymerization of ethylene or by copolymerization of ethylene and an alpha-monoolefin; B′ being selected from the group consisting of N(SiMe.sub.3).sub.2; N(SiMe.sub.2CH.sub.2CH.sub.2SiMe.sub.2); para-C.sub.6H.sub.4(NMe.sub.2); para-C.sub.6H.sub.4(OMe); C.sub.6H.sub.4(N(SiMe.sub.3).sub.2); ortho-CH.sub.2—C.sub.6H.sub.4NMe.sub.2; ortho-CH.sub.2—C.sub.6H.sub.4OMe; C.sub.6F.sub.5; C.sub.3F.sub.7; C.sub.6F.sub.13; CH(OCH.sub.2CH.sub.2O); B being the function B′ or a function derived from B′; p being an integer from 0 to 50, advantageously from 0 to 11; Z being a function selected from the group consisting of halogens; thiols; thiol derivatives; azides; amines; alcohols; carboxylic acid function; isocyanates; silanes; phosphorus derivatives; dithioesters; dithiocarbamates; dithiocarbonates; trithiocarbonates; alkoxyamines; vinyl function; dienes; and the group -A-(CH.sub.2).sub.p—B′.

The invention herein pertains to a telechelic polyolefin of formula (III) or (IV) and to a process for its preparation,

Z-A-(CH.sub.2).sub.p—B′  (III)

Z-A-(CH.sub.2).sub.p—B  (IV) A being a polymer chain obtained by homopolymerization of ethylene or by copolymerization of ethylene and an alpha-monoolefin; B′ being selected from the group consisting of N(SiMe.sub.3).sub.2; N(SiMe.sub.2CH.sub.2CH.sub.2SiMe.sub.2); para-C.sub.6H.sub.4(NMe.sub.2); para-C.sub.6H.sub.4(OMe); C.sub.6H.sub.4(N(SiMe.sub.3).sub.2); ortho-CH.sub.2—C.sub.6H.sub.4NMe.sub.2; ortho-CH.sub.2—C.sub.6H.sub.4OMe; C.sub.6F.sub.5; C.sub.3F.sub.7; C.sub.6F.sub.13; CH(OCH.sub.2CH.sub.2O); B being the function B′ or a function derived from B′; p being an integer from 0 to 50, advantageously from 0 to 11; Z being a function selected from the group consisting of halogens; thiols; thiol derivatives; azides; amines; alcohols; carboxylic acid function; isocyanates; silanes; phosphorus derivatives; dithioesters; dithiocarbamates; dithiocarbonates; trithiocarbonates; alkoxyamines; vinyl function; dienes; and the group -A-(CH.sub.2).sub.p—B′.

The invention herein pertains to a telechelic polyolefin of formula (III) or (IV) and to a process for its preparation,

Z-A-(CH.sub.2).sub.p—B′  (III)

Z-A-(CH.sub.2).sub.p—B  (IV) A being a polymer chain obtained by homopolymerization of ethylene or by copolymerization of ethylene and an alpha-monoolefin; B′ being selected from the group consisting of N(SiMe.sub.3).sub.2; N(SiMe.sub.2CH.sub.2CH.sub.2SiMe.sub.2); para-C.sub.6H.sub.4(NMe.sub.2); para-C.sub.6H.sub.4(OMe); C.sub.6H.sub.4(N(SiMe.sub.3).sub.2); ortho-CH.sub.2—C.sub.6H.sub.4NMe.sub.2; ortho-CH.sub.2—C.sub.6H.sub.4OMe; C.sub.6F.sub.5; C.sub.3F.sub.7; C.sub.6F.sub.13; CH(OCH.sub.2CH.sub.2O); B being the function B′ or a function derived from B′; p being an integer from 0 to 50, advantageously from 0 to 11; Z being a function selected from the group consisting of halogens; thiols; thiol derivatives; azides; amines; alcohols; carboxylic acid function; isocyanates; silanes; phosphorus derivatives; dithioesters; dithiocarbamates; dithiocarbonates; trithiocarbonates; alkoxyamines; vinyl function; dienes; and the group -A-(CH.sub.2).sub.p—B′.