Patent US3254469A successfully refreshed from Google Patents.
Patent US2599704A successfully refreshed from Google Patents.
Patent US5143941A successfully refreshed from Google Patents.
Patent US5042246A successfully refreshed from Google Patents.
US4931376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline trans-butadiene polymers
Assignee: Asahi Kasei Corp
•
Filing: 1989-07-28
•
Granted: 1990-06-05
•
Expires: 2009-07-28
Abstract
Abstract A butadiene polymer or a copolymer of butadiene with another conjugated diene having the following structural parameters and physical properties: (a) a content of butadiene moiety in the polymer or copolymer of at least 80% by weight, (b) a content of trans-1,4 linkage in the butadiene moiety of 80% to 95%, (c) a molecular weight distribution (Mw/Mn) of 1.2 to 4.0 as measured by gel permeation chromatography, (d) a melting temperature of the crystal of 40° C. to 130° C. as measured by DSC, and (e) a content of insolubles in boiling cyclohexane of 1% or less; a process for producing butadiene polymers, which comprises carrying out solution polymerization of butadiene monomer or budadiene monomer with another conjugated monomer in an inert solvent in the presence of a catalyst, which is a complex catalyst of (a) an organic acid salt of lanthanum or cerium and (b) an organic magnesium compound; and a polymeric resin material, comprising at least 30% by weight of a trans-butadiene polymer or copolymer as described above as a polymeric component. The above-described polymeric resin material is used as a golf ball cover material, a splint or gyps material, a head mold material for a wig, etc.
Inventors
- 👤 Takeshi Ikematsu
- 👤 Yasuo Hattori
- 👤 Yoshihiro Inoki
- 👤 Mitsuhiro Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:03
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F36/06
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
194 words
A process for producing butadiene polymers, which comprises carrying out polymerization of butadiene monomer or butadiene monomer with another conjugated monomer in the presence of a complexed catalyst, wherein said complexed catalyst is comprised of (a) a salt of a metal consisting of lanthanum or cerium with an organic acid and (b) an organic magnesium compound, wherein the amount of the catalytic component (a) is 0.01 to 1 m mole and the amount of the catalytic component (b) is 0.02 to 1.2 m mole, respectively, per 100 g of the conjugated diene monomer, and further the molar ratio of (a)/(b) is 10/1 to 1/50, the catalyst component (a) being derived from an organic acid of the following formulae (I) to (VI) ##STR16## wherein each of the radicals R 3 to R 6 is an aliphatic hydrocarbon group or an aromatic hydrocarbon group, R 1 is an aromatic hydrocarbon group, R 2 is an aliphatic hydrocarbon group, each of the radicals R 7 to R 10 is an aliphatic hydrocarbon group, an aromatic hydrocarbon group, an alkoxy group or a phenoxy group, and j, k, l and m are integers of from 1 to 6.
Claim 2
Dependent Claim
194 words
A process for producing butadiene polymers, which comprises carrying out polymerization of butadiene monomer or butadiene monomer with another conjugated monomer in the presence of a complexed catalyst, wherein said complexed catalyst is comprised of (a) a salt of a metal consisting of lanthanum or cerium with an organic acid and (b) an organic magnesium compound, wherein the amount of the catalytic component (a) is 0.01 to 1 m mole and the amount of the catalytic component (b) is 0.02 to 1.2 m mole, respectively, per 100 g of the conjugated diene monomer, and further the molar ratio of (a)/(b) is 10/1 to 1/50, the catalyst component (a) being derived from an organic acid of the following formulae (I) to (VI) ##STR16## wherein each of the radicals R 3 to R 6 is an aliphatic hydrocarbon group or an aromatic hydrocarbon group, R 1 is an aromatic hydrocarbon group, R 2 is an aliphatic hydrocarbon group, each of the radicals R 7 to R 10 is an aliphatic hydrocarbon group, an aromatic hydrocarbon group, an alkoxy group or a phenoxy group, and j, k, l and m are integers of from 1 to 6.
Claim 3
Dependent Claim
32 words
A process according to claim 1, wherein the complexed catalyst further contains at least one of (c) an organic lithium compound, (d) an organic aluminum compound and (e) an electron donating compound.
Claim 4
Dependent Claim
17 words
A process according to claim 2, wherein the component (a) is an organic acid salt of lanthanum.
Claim 5
Dependent Claim
17 words
A process according to claim 2, wherein the component (a) is an organic acid salt of cerium.
Claim 6
Dependent Claim
18 words
A process according to claim 2, wherein the component (a) is an organic phosphoric acid salt of lanthanum.
Claim 7
Dependent Claim
18 words
A process according to claim 2, wherein the component (a) is an organic phosphoric acid salt of cerium.
Claim 8
Dependent Claim
35 words
A process according to claim 2, wherein a portion or all of the catalyst components were made to react with each other in the presence or absence of the conjugated diene monomer prior to polymerization.
Claim 9
Dependent Claim
35 words
A process according to claim 1, wherein a portion of all of the catalyst components were made to react with each other in the presence or absence of the conjugated diene monomer prior to polymerization.
Claim 10
Dependent Claim
26 words
A polymeric resin material, comprising at least 30% by weight of a trans-butadiene polymer or copolymer as obtained according to claim 1 as a polymeric component.
Claim 11
Dependent Claim
32 words
A polymeric resin material according to claim 9, wherein the polymeric component comprises 30 to 90% by weight of a trans-butadiene polymer and 70 to 10% by weight of a trans-isoprene polymer.
Claim 12
Dependent Claim
31 words
A polymeric resin material according to claim 9, wherein the polymeric component comprises 30 to 90% by weight of a trans-polybutadiene polymer and 70 to 10% by weight of a trans-polyoctenamer.
Claim 13
Dependent Claim
32 words
A polymeric resin material according to claim 9, wherein the polymeric component comprises 30 to 90% by weight of a trans-polybutadiene polymer and 70 to 10% by weight of a caprolactone polymer.
Claim 14
Dependent Claim
35 words
A polymeric resin material according to claim 9, wherein the composition is vulcanized by a low temperature vulcanization at a temperature not higher than the melting point of the trans-butadiene polymer or electron beam vulcanization.
Claim 15
Dependent Claim
35 words
A polymeric resin material according to claim 10, wherein the composition is vulcanized by a low temperature vulcanization at a temperature not higher than the melting point of the trans-butadiene polymer or electron beam vulcanization.
Claim 16
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 9.
Claim 17
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 10.
Claim 18
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 13.
Claim 19
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 14.
Claim 20
Dependent Claim
14 words
A splint or gyps material, employing the polymeric resin material according to claim 9.
Claim 21
Dependent Claim
14 words
A splint or gyps material, employing the polymeric resin material according to claim 10.
Claim 22
Dependent Claim
16 words
A head mold material for a wig, employing the polymeric resin material according to claim 9.
Claim 23
Dependent Claim
16 words
A head mold material for a wig, employing the polymeric resin material according to claim 10.
Claim 24
Dependent Claim
35 words
A polymeric resin material according to claim 11, wherein the composition is vulcanized by a low temperature vulcanization at a temperature not higher than the melting point of the trans-butadiene polymer of electron beam vulcanization.
Claim 25
Dependent Claim
35 words
A polymeric resin material according to claim 12, wherein the composition is vulcanized by a low temperature vulcanization at a temperature not higher than the melting point of the trans-butadiene polymer of electron beam vulcanization.
Claim 26
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 11.
Claim 27
Dependent Claim
14 words
A golf ball cover material, employing the polymeric resin material according to claim 12.
Claim 28
Dependent Claim
14 words
A splint or gyps material, employing the polymeric resin material according to claim 11.
Claim 29
Dependent Claim
14 words
A splint or gyps material, employing the polymeric resin material according to claim 12.
Claim 30
Dependent Claim
16 words
A head mold material for a wig, employing the polymeric resin material according to claim 11.
Claim 31
Dependent Claim
16 words
A head mold material for a wig, employing the polymeric resin material according to claim 12.
Claim 32
Dependent Claim
15 words
A process according to claim 1, wherein the metal of the component (a) is lanthanum.
Claim 33
Dependent Claim
15 words
A process according to claim 1, wherein the metal of the component (a) is cerium.
References Cited (Backward Citations)
US3502747A
Cited
US3550158A
Cited
US3779944A
Cited
US3887536A
Cited
US3846385A
Cited
US3865749A
Cited
US3962130A
Cited
US4092268A
Cited
US4080492A
Cited
US4129705A
Cited
US4110525A
Cited
US4112210A
Cited
US4148985A
Cited
US4148986A
Cited
US4152505A
Cited
US3992561A
Cited
DE2932871A1
Cited
US4413098A
Cited
US4225690A
Cited
US4355156A
Cited
EP0091287A2
Cited
US4619982A
Cited
US4699962A
Cited
US4575538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |