US5047481A
Expired / Lapsed
US
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Compatible polymer blends
Assignee: Roehm GmbH Darmstadt
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Filing: 1989-05-23
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Granted: 1991-09-10
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Expires: 2009-05-23
Abstract
Abstract The invention relates to compatible polymer blends comprised of a polymer component containing cyclohexyl (meth)acrylate as a monomer, and further comprised of a polymer component containing styrene as a monomer.
Inventors
- 👤 Werner Siol
- 👤 Ulrich Terbrack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:32
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08L33/00; C08L33/04; C08L33/06; G; G02; G02B; G02B1/00; G02B1/04; G02B1/045; C08J2325/00; C08J2325/02; C08J2325/04; C08J2333/00; C08J2333/04; C08J2333/06; C08J2433/00; C08L25/06; Y; Y10; Y10S; Y10S525/00; Y10S525/931
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
A polymer composition, consisting essentially of: (i) 40-99 wt. % of a miscible two component polymer blend, containing 0.1-99.9 wt. % of a first polymer comprising 90-100 wt. % styrene monomer units, and 99.9-0.1 wt. % of a second polymer comprising 10-100 wt. % of monomer units having formula (I): ##STR5## wherein R 1 is hydrogen or methyl; and (ii) 60-1 wt. % of a third polymer, wherein said third polymer is chemically different from said first polymer and said second polymer, and wherein said third polymer is non-miscible with said first polymer, said second polymer and said polymer blend.
Claim 2
Dependent Claim
100 words
A polymer composition, consisting essentially of: (i) 40-99 wt. % of a miscible two component polymer blend, containing 0.1-99.9 wt. % of a first polymer comprising 90-100 wt. % styrene monomer units, and 99.9-0.1 wt. % of a second polymer comprising 10-100 wt. % of monomer units having formula (I): ##STR5## wherein R 1 is hydrogen or methyl; and (ii) 60-1 wt. % of a third polymer, wherein said third polymer is chemically different from said first polymer and said second polymer, and wherein said third polymer is non-miscible with said first polymer, said second polymer and said polymer blend.
Claim 3
Dependent Claim
20 words
The polymer composition of claim 1, wherein said second polymer comprises 20-90 wt. % of monomer units of formula (I).
Claim 4
Dependent Claim
58 words
The polymer composition of claim 1, wherein said second polymer comprises: (a) 10-90 wt. % of monomer units having formula (I), and (b) 90-10 wt. % of acrylic acid esters, methacrylate acid esters of C 1-12 nonalicyclic alcohols, optionally substituted cyclic alkanols having 4-5 or 7-12 carbon atoms in the ring, C 7-12 substituted cyclohexanols or mixtures thereof.
Claim 5
Dependent Claim
26 words
The polymer composition of claim 1, wherein said second polymer comprises: (a) 10-90 wt. % methylmethacrylate, and (b) 90-10 wt. % monomer units having formula (I).
Claim 6
Dependent Claim
40 words
The polymer composition of claim 1, wherein said first polymer comprises 1-20 wt. % monomer units of formula (II): ##STR6## wherein R 2 is hydrogen or methyl, and R 3 is a C n H 2n+1 alkyl group wherein n=1-8.
Claim 7
Dependent Claim
23 words
The polymer composition of claim 1, wherein at least one of said first and second polymers has a glass transition temperature Tg>70° C.
Claim 8
Dependent Claim
17 words
The polymer composition of claim 1, wherein said second polymer has a glass transition temperature Tg>20° C.
Claim 9
Dependent Claim
16 words
The polymer composition of claim 1, wherein said polymer blend has a cloud point when heated.
Claim 10
Dependent Claim
18 words
The polymer composition of claim 1, wherein said polymer blend has a cloud point greater than 24° C.
Claim 11
Dependent Claim
18 words
The polymer composition of claim 1, wherein said polymer blend has a cloud point greater than 60° C.
Claim 12
Dependent Claim
18 words
The polymer composition of claim 1, wherein said polymer blend has a cloud point greater than 180° C.
Claim 13
Dependent Claim
26 words
The polymer composition of claim 1, wherein the index of refraction of said polymer blend and said third polymer have the following relationship ↑n.sub.D,PM.sup.25 -n.sub.D,P3.sup.25 ↑<0.01.
Claim 14
Dependent Claim
16 words
The polymer composition of claim 1, wherein said third polymer has a glass temperature Tg<20° C.
Claim 15
Dependent Claim
24 words
The polymer composition of claim 1, wherein said third polymer is at least partially covalently bonded to said first polymer or said second polymer.
Claim 16
Dependent Claim
12 words
The polymer composition of claim 1, wherein said third polymer is cross-linked.
Claim 17
Dependent Claim
14 words
The polymer composition of claim 1, wherein said third polymer is polybutadiene or polyisoprene.
References Cited (Backward Citations)
US3009895A
Cited
US2941977A
Cited
US3297794A
Cited
US3629211A
Cited
US4165308A
Cited
US4849479A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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