Patent US4990559A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4990559A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermoplastic resin composition

Assignee: Mitsui Chemicals Inc
•
Filing: 1990-02-13
•
Granted: 1991-02-05
•
Expires: 2010-02-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A thermoplastic resin composition composed of [A] 5 to 90% by weight of a linear polyolefin having an intrinsic viscosity [μ], measured in decalin at 135° C., of 1.0 to 15.0 and a crystallinity of at least 45% and formed substantially of from 8 to 40% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [μ], determined at 135° C., of 10 to 40 dl/g and 60 to 92% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [μ], measured in decalin at 135° C., of 0.1 to 5.0 dl/g, and [B] 95 to 10% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.05 to 10 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR1## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked to each other to form a monocyclic or polycyclic group which may have a double bond, and R 9 and R 11 , or R 10 and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula [I]. The composition is suitable for obtaining molded articles having self-lubricating property, molding dimensional stability, heat resistance and rigidity in a well-balanced combination.

Inventors

  • 👤 Takeshi Shiraki
  • 👤 Kunie Hiroshige
  • 👤 Iwatosi Suzuki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 06:36
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0807; C08L23/0815; C08L23/0823; C08L65/00; C08L2205/00; C08L2205/02; C08L2205/03; C08L2314/00; C08L2314/02

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 243 words
A thermoplastic resin composition composed of [A] 5 to 90% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 1.0 to 15.0 and a crystallinity of at least and formed substantially of from 8 to 40% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η], determined at 135° C., of 10 to 40 dl/g and to 92% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.1 to 5.0 dl/g, and [B] 95 to 10% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.05 to 10 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR100## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked to each other to form a monocyclic or polycyclic group which may have a double bond, and R 9 and R 11 , or and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula [I].
Claim 2
Dependent Claim 243 words
A thermoplastic resin composition composed of [A] 5 to 90% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 1.0 to 15.0 and a crystallinity of at least and formed substantially of from 8 to 40% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η], determined at 135° C., of 10 to 40 dl/g and to 92% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.1 to 5.0 dl/g, and [B] 95 to 10% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.05 to 10 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR100## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked to each other to form a monocyclic or polycyclic group which may have a double bond, and R 9 and R 11 , or and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula [I].
Claim 3
Dependent Claim 240 words
A thermoplastic resin composition composed of [A] 10 to 60% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 2.5 to 10.0 dl/g and a crystallinity of at least 55% and formed substantially of from 10 to 30% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η], determined at 135° C., of 15 to 35 dl/g and 70 to 90% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.5 to 3.0 dl/g, and [B] 90 to 40% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.08 to 5 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR101## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked cyclic group which may have a double bond, and R 9 and R 11 , or R 10 and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula [I1].
Claim 4
Dependent Claim 240 words
A thermoplastic resin composition composed of [A] 10 to 60% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 2.5 to 10.0 dl/g and a crystallinity of at least 55% and formed substantially of from 10 to 30% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η], determined at 135° C., of 15 to 35 dl/g and 70 to 90% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.5 to 3.0 dl/g, and [B] 90 to 40% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.08 to 5 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR101## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked cyclic group which may have a double bond, and R 9 and R 11 , or R 10 and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula [I1].
Claim 5
Dependent Claim 248 words
A thermoplastic resin composition composed of [A] 1 20 to 50% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 3.0 to 7.0 and a crystallinity of at least 65% and formed substantially of from 15 to 25% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η]), determined at 135° C., of 25 to 35 dl/g and 75 to 85% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.5 to 3.0 dl/g, and [B] 80 to 50% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.08 to 5 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR102## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked to each other to form a monocyclic or polycyclic group which may have a double bond, and R 9 and R 11 , or R 10 and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula I.
Claim 6
Dependent Claim 248 words
A thermoplastic resin composition composed of [A] 1 20 to 50% by weight of a linear polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 3.0 to 7.0 and a crystallinity of at least 65% and formed substantially of from 15 to 25% of an ultrahigh-molecular-weight polyolefin having an intrinsic viscosity [η]), determined at 135° C., of 25 to 35 dl/g and 75 to 85% of a low-molecular-weight to high-molecular-weight polyolefin having an intrinsic viscosity [η], measured in decalin at 135° C., of 0.5 to 3.0 dl/g, and [B] 80 to 50% by weight of at least one type of cyclo-olefin resin having an intrinsic viscosity, measured in decalin at 135° C., of 0.08 to 5 dl/g and a softening temperature of at least 70° C. and selected from ring-opened polymers and ring-opened copolymers derived from cyclo-olefins represented by the following formula [I], ##STR102## wherein n is 0 or a positive integer, R 1 to R 12 , independently from each other, represent an atom or a group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups, R 9 to R 12 may be linked to each other to form a monocyclic or polycyclic group which may have a double bond, and R 9 and R 11 , or R 10 and R 12 , may each form an alkylidene group, hydrogenated products of said polymers or copolymers, and addition polymers of ethylene with the cyclo-olefins of formula I.
Claim 7
Dependent Claim 55 words
The composition of claim 3 in which the ultrahigh-molecular-weight polyolefin and the low-molecular-weight to high-molecular-weight polyolefin are homopolymers or copolymers of alpha-olefins selected from the group consisting of ethylene, propylene, 1-butene, 10petene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 4-methyl-1-pentene and 3-methyl-1-pentene, and the cyclo-olefin resin is an addition polymer of the cyclo-olefin of formula [I] and ethylene.
Claim 8
Dependent Claim 17 words
The composition of claim 4 in which the linear polyolefin is obtained by a multistep polymerization method.
Claim 9
Dependent Claim 54 words
The composition of claim 5 which further comprises at least one component selected from the group consisting of a filler, a thermal stabilizer, a weather resistance stabilizer, an antistatic agent, a slip agent, an antiblocking agent, an antihaze agent, a lubricant, a dye, a pigment, a natural oil, a synthetic oil and a wax.
Claim 10
Dependent Claim 39 words
The composition of claim 4 in which the ultrahigh-molecular-weight polyolefin and the low-molecular-weight polyolefin to high-molecular-weight polyolefin constituting the linear polyolefin are homopolymers or copolymers of ethylene, and the cyclo-olefin resin is an addition polymer of ethylene and 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene.
Claim 11
Dependent Claim 17 words
The composition of claim 7 in which the linear polyolefin is obtained by a multistep polymerization method.
Claim 12
Dependent Claim 54 words
The composition of claim 5 which further comprises at least one component selected from the group consisting of a filler, a thermal stabilizer, a weather resistance stabilizer, an antistatic agent, a slip agent, an antiblocking agent, an antihaze agent, a lubricant, a dye, a pigment, a natural oil, a synthetic oil and a wax.
Claim 13
Dependent Claim 37 words
The composition of claim 7 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 10:90 to 90:10.
Claim 14
Dependent Claim 37 words
The composition of claim 8 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 10:90 to 90:10.
Claim 15
Dependent Claim 37 words
The composition of claim 9 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 10:90 to 90:10.
Claim 16
Dependent Claim 37 words
The composition of claim 7 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 50:50 to 75:25.
Claim 17
Dependent Claim 37 words
The composition of claim 8 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 50:50 to 75:25.
Claim 18
Dependent Claim 37 words
The composition of claim 9 in which in the cyclo-olefin/ethylene addition polymer, the recurring units derived from ethylene and the recurring units derived from the cyclo-olefin are bonded in a mole ratio of from 50:50 to 75:25.

References Cited (Backward Citations)

DE214137C Cited
US4874808A Cited
US4918133A Cited
US4933393A Cited
US4931520A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-02-04 1994-08-06 1995-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-02-04 1998-08-06 1999-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-02-04 2002-08-06 2003-02-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag