Articles prepared from hydrogenated block copolymers
First Claim
1. An article comprising at least one hydrogenated block copolymer composition and at least one other component selected from the group consisting of olefin polymers, styrene polymers, tackifying resins, polymer extending oils and engineering thermoplastic resins, said hydrogenated block copolymer composition comprising:
- a. a tetra-branched block copolymer (IV) having a number average molecular weight of 100,000 to 800,000 represented by the general formula (A—
B)4X;
b. a tri-branched block copolymer (III) having a number average molecular weight of from 75,000 to 600,000 represented by the general formula (A—
B)3X;
c. a di-branched block copolymer (II) having a number average molecular weight of from 50,000 to 400,000 represented by the general formula (A—
B)2X; and
d. a linear diblock copolymer (I) having a number average molecular weight of from 25,000 to 200,000 represented by the general formula A—
B;
where;
i. A represents a polymer block of a mono alkenyl arene;
ii. B represents a polymer block of a hydrogenated conjugated diene;
iii. X represents the residue of an alkoxy silane coupling agent having the formula Rx—
Si—
(OR′
)y, where x is 0 or 1, x+y=4, and R and R′
are the same or different, R is selected from aryl hydrocarbon radicals, linear alkyl hydrocarbon radicals and branched alkyl hydrocarbon radicals, and R′
is selected from linear and branched alkyl hydrocarbon radicals; and
iv. the relative amounts of copolymers IV, III, II and I are from 0 to 5 weight percent IV, from 0 to 60 weight percent III, from 40 to 95 weight percent II and from 2 to 10 weight percent I, where the total of I, II, III and IV equals 100 weight percent.
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Abstract
The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl arene end blocks and conjugated diene mid blocks. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.
44 Citations
53 Claims
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1. An article comprising at least one hydrogenated block copolymer composition and at least one other component selected from the group consisting of olefin polymers, styrene polymers, tackifying resins, polymer extending oils and engineering thermoplastic resins, said hydrogenated block copolymer composition comprising:
-
a. a tetra-branched block copolymer (IV) having a number average molecular weight of 100,000 to 800,000 represented by the general formula (A—
B)4X;
b. a tri-branched block copolymer (III) having a number average molecular weight of from 75,000 to 600,000 represented by the general formula (A—
B)3X;
c. a di-branched block copolymer (II) having a number average molecular weight of from 50,000 to 400,000 represented by the general formula (A—
B)2X; and
d. a linear diblock copolymer (I) having a number average molecular weight of from 25,000 to 200,000 represented by the general formula A—
B;
where;
i. A represents a polymer block of a mono alkenyl arene;
ii. B represents a polymer block of a hydrogenated conjugated diene;
iii. X represents the residue of an alkoxy silane coupling agent having the formula Rx—
Si—
(OR′
)y, where x is 0 or 1, x+y=4, and R and R′
are the same or different, R is selected from aryl hydrocarbon radicals, linear alkyl hydrocarbon radicals and branched alkyl hydrocarbon radicals, and R′
is selected from linear and branched alkyl hydrocarbon radicals; and
iv. the relative amounts of copolymers IV, III, II and I are from 0 to 5 weight percent IV, from 0 to 60 weight percent III, from 40 to 95 weight percent II and from 2 to 10 weight percent I, where the total of I, II, III and IV equals 100 weight percent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 52, 53)
-
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33. An article comprising at least one hydrogenated block copolymer composition and at least one other component selected from the group consisting of olefin polymers, styrene polymers, tackifying resins, polymer extending oils, fillers, reinforcements, lubricants and engineering thermoplastic resins, said hydrogenated block copolymer composition comprising:
-
a. a tetra-branched block copolymer (IV) having a number average molecular weight of from 100,000 to 800,000 represented by the general formula (C—
D—
E)4X;
b. a tri-branched block copolymer (III) having a number average molecular weight of from 75,000 to 600,000 represented by the general formula (C—
D—
E)3X;
c. a di-branched block copolymer (II) having a number average molecular weight of from 50,000 to 400,000 represented by the general formula (C—
D—
E)2X; and
d. a linear diblock copolymer (I) having a number average molecular weight of from 25,000 to 200,000 represented by the general formula C—
D—
E;
where;
i. D represents a polymer block of a mono alkenyl arene;
ii. C and E represent polymer blocks of a hydrogenated conjugated diene;
iii. X represents the residue of an alkoxy silane coupling agent having the formula Rx—
Si—
(OR′
)y, where x is 0 or 1, x+y=4, R and R′
are the same or different, R is selected from aryl hydrocarbon radicals, linear alkyl hydrocarbon radicals and branched alkyl hydrocarbon radicals, and R′
is selected from linear and branched alkyl hydrocarbon radicals; and
iv. the relative amounts of copolymers I, II, III and IV are from 0 to 5 weight percent IV, from 0 to 60 weight percent III, from 40 to 95 weight percent II and from 2 to 10 weight percent I, where the total of I, II, III and IV equals 100 weight percent. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification