Polymerization Process and Adhesives Therefrom
First Claim
Patent Images
1. A propylene polymer comprising a component having a crystallinity of 10% or less and a component having a crystallinity of 20% or more, said propylene polymer having:
- a) a melting point of X °
C. or more where X=−
0.0038(Tp)2+0.36(Tp)+150, where Tp is the temperature of polymerization in °
C.;
b) an Mw of 10,000 g/mol or more;
c) a heat of fusion of from 1-70 J/g;
d) Stereodefects per 10,000 monomer units of Y or less where Y=2.35(Tp)−
100 (where Tp is the temperature of polymerization in °
C.) for the portion of the blend that is insoluble in hexane at 23°
C.;
e) a dot T-Peel on Kraft paper of 1 N or more; and
f) a branching factor of 0.98 or less, where the branching factor is the ratio of g′
measured at Mz to g′
measured at Mw.
1 Assignment
0 Petitions
Accused Products
Abstract
This invention relates to a propylene polymer comprising a component having a crystallinity of 10% or less and a component having a crystallinity of 20% or more, said propylene polymer having:
- a) a melting point of X ° C. or more where X=−0.0038(Tp)2+0.36(Tp)+150, where Tp is the temperature of polymerization in ° C.;
- b) an Mw of 10,000 g/mol or more;
- c) a heat of fusion of from 1-70 J/g;
- d) Stereodefects per 10,000 monomer units of Y or less where Y=2.35(Tp)−100 (where Tp is the temperature of polymerization in ° C.) for the portion of the blend that is insoluble in hexane at 23° C.;
- e) a dot T-Peel on Kraft paper of 1 N or more; and
- f) a branching factor of 0.98 or less, where the branching factor is the ratio of g′ measured at Mz to g′ measured at Mw, and process to produce such polymers.
24 Citations
25 Claims
-
1. A propylene polymer comprising a component having a crystallinity of 10% or less and a component having a crystallinity of 20% or more, said propylene polymer having:
-
a) a melting point of X °
C. or more where X=−
0.0038(Tp)2+0.36(Tp)+150, where Tp is the temperature of polymerization in °
C.;b) an Mw of 10,000 g/mol or more; c) a heat of fusion of from 1-70 J/g; d) Stereodefects per 10,000 monomer units of Y or less where Y=2.35(Tp)−
100 (where Tp is the temperature of polymerization in °
C.) for the portion of the blend that is insoluble in hexane at 23°
C.;e) a dot T-Peel on Kraft paper of 1 N or more; and f) a branching factor of 0.98 or less, where the branching factor is the ratio of g′
measured at Mz to g′
measured at Mw. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A process for producing a propylene polymer, the process comprising:
-
1) contacting a monomer composition comprising propylene with a polymerization catalyst system under homogeneous polymerization conditions and at a temperature of about 100°
C. to about 195°
C., wherein the polymerization catalyst system includes an activator and two catalyst compounds, where the first catalyst compound is capable of producing a polymer having a heat of fusion of 10 J/g or less at said homogeneous polymerization conditions and at a temperature of 100°
C.-195°
C., and the second catalyst compound is represented by the formula (A);wherein M is a transition metal selected from group 4 of the Periodic Table of the Elements; each R1 is, independently, hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent R1 groups may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; each R2, R3, R5, R6 and R7 is independently, hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents; Y is a bridging group comprising carbon, silicon or germanium; and each X is, independently, hydride radicals, hydrocarbyl radicals, substituted hydrocarbyl radicals, halocarbyl radicals, substituted halocarbyl radicals, silylcarbyl radicals, substituted silylcarbyl radicals, germylcarbyl radicals, or substituted germylcarbyl radicals;
or both X are joined and bound to the metal atom to form a metallacycle ring containing from about 3 to about 20 carbon atoms;
orboth together can be an olefin, diolefin or aryne ligand;
or both X may, independently, be a halogen, alkoxide, aryloxide, amide, phosphide or other univalent anionic ligand or both X can also be joined to form a anionic chelating ligand;2) obtaining a propylene polymer comprising a component having a crystallinity of 5% or less and a component having a crystallinity of 20% or more, said polymer having; a) a melting point of X °
C. or more where X=−
0.0038(Tp)2+0.36(Tp)+150, where Tp is the temperature of polymerization in °
C.;b) an Mw of 10,000 g/mol or more; c) a heat of fusion of from 1-70 J/g; d) Stereodefects per 10,000 monomer units of Y or less where Y=2.35(Tp)−
100 (where Tp is the temperature of polymerization in °
C.) for the portion of the blend that is insoluble in hexane at 23°
C.;e) a dot T-Peel on Kraft paper of 1 N or more; and f) a branching factor of 0.98 or less, where branching factor is the ratio of g′
measured at Mz to g′
measured at Mw.- View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification