CA1196136A - Polycarbonate-based thermoplastic polymers blend - Google Patents
Polycarbonate-based thermoplastic polymers blendInfo
- Publication number
- CA1196136A CA1196136A CA000424517A CA424517A CA1196136A CA 1196136 A CA1196136 A CA 1196136A CA 000424517 A CA000424517 A CA 000424517A CA 424517 A CA424517 A CA 424517A CA 1196136 A CA1196136 A CA 1196136A
- Authority
- CA
- Canada
- Prior art keywords
- polycarbonate
- component
- thermoplastic polymer
- copolymer
- thermoplastic polymers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
POLYCARBONATE-BASED THERMOPLASTIC POLYMERS
BLEND
ABSTRACT
This invention relates to thermoplastic polymer blends prepared by mixing together an aromatic polycarbonate, one or more polytere-phthalates derived from the condensation of terephthalic acid with a glycol of formula HO-(CH2)n-OH where n varies from 2 to 10, and olefin elastomers.
The materials thus obtained have high impact strength even at low temperature, good solvent resistance, and a better processability than polycarbonate.
BLEND
ABSTRACT
This invention relates to thermoplastic polymer blends prepared by mixing together an aromatic polycarbonate, one or more polytere-phthalates derived from the condensation of terephthalic acid with a glycol of formula HO-(CH2)n-OH where n varies from 2 to 10, and olefin elastomers.
The materials thus obtained have high impact strength even at low temperature, good solvent resistance, and a better processability than polycarbonate.
Description
CASE 1~80 Polycarbonate is a resin known to possess exceptional mechanical characteristics9 pQrtisularly in terms of impaet stren~th~ but it has certain dafeGts wllich prevent its use in many large-consumption applications.
Of these defects9 the mairl ones are a substantial brittling beyond a certain critical thicluness, a very low resistance to rnany organic sol~ents~ and poor impact strength at lo~ temperatureO
I'hese negative characteristics have greatly limited the use of polycarbolla-te in one field, namely the automobile field~ ~Jhich although ~onstantly searching for ~ew materiAls of elevated mechanical properties~ must ensure that they possess excellent resistance to those agents (petrol, lubricants~ deterg~ellts etcO) whieh are able, either habitually or accidentally, to come into contact with the article dul-ing its operational lifeO
~he literature describes examples of blends preparecl by mi~in6 a polycarbonate with a polyester (AU 55998~ US 49188,~147 US 31494~85)~
or by mixi.ng together a polycarbonate, a polyolefin and a third con~onent such as an acrylic polymer (US 4~245~058)9 a hyclrogenated bloclc copolymer (US 4~122,131) 9 or an epoxidisable polydiene (GB 1~ 149,695)~
The literature also describes a thermoplastic polymer blend (GB 17007,724) comprising at least 50% by ~eigrht of polycarbonate and not more than 50,~ of an olefin polyrner which can be partially substituted by a polyester resin9 such tha-t the wei~ht ratio of the olefin polymer to the polyester is always greater than ~nityO
Howovert because o~ the substantial plasticising effect which 3~
..
polyolefins have on polycarbonate, this blend has a rather lo~J
load distortion temperature, this being a limiting char~cteristic ~or many applications, including the auto~obile field~
We have now surprisingly found that it is possible to prepare materials with improved thermal properties by suitably mixin~
together bisphenol A polycarbonate, one or more thermoplastic polyesters prepared by condensing terephthalic acid with glycols of general formula ~O-(CH2~n-OH where ~ lies bet~een Z and 10~
and olefin el~stomers in such quantities that the weight ratio o~ the o.efin elastomer to the thermoplastic polyeste~ is less than or equal to 1, Although the materials obtained have an impact strength which is ~ery close to that of polycarbonate, compared with this latter they have excellent solvent resistance, lo~ sensitivity to tnick-ness, impro~ed impact strength at low temperature; and easiermoulding conditions.
These polymer blends and the products obtained from them therefore demonstrate physical9 chemical and electrical characteristics which overall are better than those o~ polycarbonate when used eithcr as such or in mixtures as described in the aforesaid patents.
The present invention rela es to a three component thermo~lastic polymer blend and to the materials obta~ned from it, and com~o~ises:
a) a bisphenoi A polycarbouate;
b) one or more polyalkyleneterephthalates in which the number of c~rbor. atorls Or the alkylene radical is from 2 to 10; and c) a modifier which r.!odifies the im?act ene~Dy a~sorpticn mec;l~nism~
6~3~
chosen from the following:
I) ~ C2 or C3 pal~olefin;
II) a C2-C3 olefin copolymer (e.g. of the EPR or EPD~ type);
III) a mixture o~ with (II~;
IV) a mixture of (I) with a copolymer of polyethylenevinyl-acetate (E~) type; and V) a mixture of (I), (II) and a copolymer of polyethylene-vinylacetate (EVA) type, such that the weight ratio of component c to component b is less than or equal to 1.
The quantity of component a may vary between 5 and 95% by weight, the quantity of components b + c may vary between 5 and 95~ by weight, and the weight ratio of component c to component b, as indicated above, is less than or equal to 1.
The polycarbonate used is preferably chosen from those having an intrinsic viscosity in methylene chloride at 20C of between 0.46 and 1.2 dl/g.
The modifiers of the impact energy absorption mechanism used can be either simple polyethylenes or polypropyl-enes, or copolymers of two or more ole-Eins such as EPR (ethyle-ne-propylene) or EPDM (ethylene-propylene-diene), or mixtur-es of these with a copolymer of the polyethylenevinylacetate (EVA) type.
Although not essential, best results are obtained by carrying out one or more premixing operations on the components, then reducing the obtained blend to gxanules, and then moulding the blend. The apparatus used for mixing is of no special importance. ~hus single screw extrudeEs, double screw extruders,Banbury mixers and all machinery normally used in industrial practice are suitable ~,~
3~
for this ~urpose~
The thermoplastic pol~mer blend of the present invention caIi be presen-ted i.n various forms such as powder~ granules~ spheres, discoids or other ~orms, prepared for example either by extrusion or by injeotion.
The blend c~n contain various ~dditives such as stabili.sers~ dyes, .~lame retard~rs9 lubricants or ~illers (glass fibre~ carbon fibre, asbestos fibre, glass wool etc~). All operationa.l details will be apparent from reading the examples given hereil~fter, their purpose being ~erel~ to illustrate the invelltion without limi.tirlg it in any way~
EXA~IES 1_77 The blend component Oranules are clried and mixed, and extruded ilt a single screw extruder at a temperature of 275Co The pol~ller blenrl obtained in this manner is then granulated and injection-moulded at temperatuLres varying between 260 and 2~0C
according to the composition, the mould temperature being 60C~
The follo~ing tests were carried out on tlle products obtained:
a) Izod notcned bar impact test (ASTM D 256 61 method) b) Vicat softenin~ point at 5 kg ~ASTrl D 15X5 72 nlethod) c~ Modulus of elasticity in bending ~STM D 790~70 method) d) Stress cracking test:
tension is applied in accordance with the ASTM D 6~8 method to sar~ples which have been pre~iousl~J subjected to 0.7~ ter~sile ~5 deform~tion and immersed for 2 hours in a l:l (volumetric) ~ ~tu~e o toluene and isooctane to which l~o of methyl alcohol has been added.
3~
s ~he percent~gs retention of the ultimate tensile stress of the non_irnmersed sam~le is then mea~ured.
Comp~ltlon 1 2 3 4 5 6 7 8 P~T ~ 5 15 35 3 20 45 40 25 ~PR 5 10 5 10 20 5 10 25 Degrees ~loat 155 147 135 137 123 lQ~ 125 ~ 12 ~4 5 KG ( C~
IZOD IMPACT, I.~T~
59 63 67 78 ~1 51 54 62 (kg cm/c~
MOD. E~LASTICITY
Of these defects9 the mairl ones are a substantial brittling beyond a certain critical thicluness, a very low resistance to rnany organic sol~ents~ and poor impact strength at lo~ temperatureO
I'hese negative characteristics have greatly limited the use of polycarbolla-te in one field, namely the automobile field~ ~Jhich although ~onstantly searching for ~ew materiAls of elevated mechanical properties~ must ensure that they possess excellent resistance to those agents (petrol, lubricants~ deterg~ellts etcO) whieh are able, either habitually or accidentally, to come into contact with the article dul-ing its operational lifeO
~he literature describes examples of blends preparecl by mi~in6 a polycarbonate with a polyester (AU 55998~ US 49188,~147 US 31494~85)~
or by mixi.ng together a polycarbonate, a polyolefin and a third con~onent such as an acrylic polymer (US 4~245~058)9 a hyclrogenated bloclc copolymer (US 4~122,131) 9 or an epoxidisable polydiene (GB 1~ 149,695)~
The literature also describes a thermoplastic polymer blend (GB 17007,724) comprising at least 50% by ~eigrht of polycarbonate and not more than 50,~ of an olefin polyrner which can be partially substituted by a polyester resin9 such tha-t the wei~ht ratio of the olefin polymer to the polyester is always greater than ~nityO
Howovert because o~ the substantial plasticising effect which 3~
..
polyolefins have on polycarbonate, this blend has a rather lo~J
load distortion temperature, this being a limiting char~cteristic ~or many applications, including the auto~obile field~
We have now surprisingly found that it is possible to prepare materials with improved thermal properties by suitably mixin~
together bisphenol A polycarbonate, one or more thermoplastic polyesters prepared by condensing terephthalic acid with glycols of general formula ~O-(CH2~n-OH where ~ lies bet~een Z and 10~
and olefin el~stomers in such quantities that the weight ratio o~ the o.efin elastomer to the thermoplastic polyeste~ is less than or equal to 1, Although the materials obtained have an impact strength which is ~ery close to that of polycarbonate, compared with this latter they have excellent solvent resistance, lo~ sensitivity to tnick-ness, impro~ed impact strength at low temperature; and easiermoulding conditions.
These polymer blends and the products obtained from them therefore demonstrate physical9 chemical and electrical characteristics which overall are better than those o~ polycarbonate when used eithcr as such or in mixtures as described in the aforesaid patents.
The present invention rela es to a three component thermo~lastic polymer blend and to the materials obta~ned from it, and com~o~ises:
a) a bisphenoi A polycarbouate;
b) one or more polyalkyleneterephthalates in which the number of c~rbor. atorls Or the alkylene radical is from 2 to 10; and c) a modifier which r.!odifies the im?act ene~Dy a~sorpticn mec;l~nism~
6~3~
chosen from the following:
I) ~ C2 or C3 pal~olefin;
II) a C2-C3 olefin copolymer (e.g. of the EPR or EPD~ type);
III) a mixture o~ with (II~;
IV) a mixture of (I) with a copolymer of polyethylenevinyl-acetate (E~) type; and V) a mixture of (I), (II) and a copolymer of polyethylene-vinylacetate (EVA) type, such that the weight ratio of component c to component b is less than or equal to 1.
The quantity of component a may vary between 5 and 95% by weight, the quantity of components b + c may vary between 5 and 95~ by weight, and the weight ratio of component c to component b, as indicated above, is less than or equal to 1.
The polycarbonate used is preferably chosen from those having an intrinsic viscosity in methylene chloride at 20C of between 0.46 and 1.2 dl/g.
The modifiers of the impact energy absorption mechanism used can be either simple polyethylenes or polypropyl-enes, or copolymers of two or more ole-Eins such as EPR (ethyle-ne-propylene) or EPDM (ethylene-propylene-diene), or mixtur-es of these with a copolymer of the polyethylenevinylacetate (EVA) type.
Although not essential, best results are obtained by carrying out one or more premixing operations on the components, then reducing the obtained blend to gxanules, and then moulding the blend. The apparatus used for mixing is of no special importance. ~hus single screw extrudeEs, double screw extruders,Banbury mixers and all machinery normally used in industrial practice are suitable ~,~
3~
for this ~urpose~
The thermoplastic pol~mer blend of the present invention caIi be presen-ted i.n various forms such as powder~ granules~ spheres, discoids or other ~orms, prepared for example either by extrusion or by injeotion.
The blend c~n contain various ~dditives such as stabili.sers~ dyes, .~lame retard~rs9 lubricants or ~illers (glass fibre~ carbon fibre, asbestos fibre, glass wool etc~). All operationa.l details will be apparent from reading the examples given hereil~fter, their purpose being ~erel~ to illustrate the invelltion without limi.tirlg it in any way~
EXA~IES 1_77 The blend component Oranules are clried and mixed, and extruded ilt a single screw extruder at a temperature of 275Co The pol~ller blenrl obtained in this manner is then granulated and injection-moulded at temperatuLres varying between 260 and 2~0C
according to the composition, the mould temperature being 60C~
The follo~ing tests were carried out on tlle products obtained:
a) Izod notcned bar impact test (ASTM D 256 61 method) b) Vicat softenin~ point at 5 kg ~ASTrl D 15X5 72 nlethod) c~ Modulus of elasticity in bending ~STM D 790~70 method) d) Stress cracking test:
tension is applied in accordance with the ASTM D 6~8 method to sar~ples which have been pre~iousl~J subjected to 0.7~ ter~sile ~5 deform~tion and immersed for 2 hours in a l:l (volumetric) ~ ~tu~e o toluene and isooctane to which l~o of methyl alcohol has been added.
3~
s ~he percent~gs retention of the ultimate tensile stress of the non_irnmersed sam~le is then mea~ured.
Comp~ltlon 1 2 3 4 5 6 7 8 P~T ~ 5 15 35 3 20 45 40 25 ~PR 5 10 5 10 20 5 10 25 Degrees ~loat 155 147 135 137 123 lQ~ 125 ~ 12 ~4 5 KG ( C~
IZOD IMPACT, I.~T~
59 63 67 78 ~1 51 54 62 (kg cm/c~
MOD. E~LASTICITY
2 23000 21~00 1970022300 20000 1530022800 20300133~0 IN BENDING ~kg/cm ) ~ U~T~ TENSI~E STRESS
RETE.~rION AFTER 120 MIN. - 63 7~ 92 94 91 90 91 89 ~ ERSICN
TA:13LE 2 -~ompositio~ 13 11 12 13 14 15 16 17 18 PC 100 75 75 60 60 60 5~ -50 - 5~
- 20 15 35 30 ''O 45 4 25 EPl~M . - 5 10 5 l O 20 5 10 25 Degrees ~icat 155 14~ 133 13~ 121 105 1 21 ~ 09 90 5 KG (C) IZOD IMPACr, N~;~
82 91 98 5~ 63 75 ( kg cm/cm 3 MO~. ELASTICITY
23000218001 950022500 2~1001510~230002050013200 IN BE!~DT~ ~kg~cm 3 ,~ VI.T. TENSTLE SlæSS
R~TENrION AFL'~R 12û MIN. -65 79 gO 95 93 93 94 87 IMI~IE~SION
Co~posit~ on 19 20 21 22 23 24 25 26 27 28 29 30 PC 1~0 75 75 60 ~0 60 50 50 50 40 40 4~
P13T _ 20 15 35 3~ 20 45 40 25 55 5 3 Degree~ VS C2-t 1~ 135 12~133 124 115131 122 1~$ 138 ~ ~7 107 5 I~G ~ C) IZOD IMPACT, NOTCHED
9Q 58 72 29 87 95 76 8~ 91 47 ~3 62 (3~g cm/cm) MOD~ ELASTICITY
~ 23000 22900 20200 24000 ~130~ 15700 24300 21700 1360~ 24200 2180~ 11300 IN BE~)ING (~g/cm ) ,g ULT. TENSILE STR}:SS
R~E~'TION AFr~ 120 MI~ 75 78 80 83 77 82 84 79 87 ao - 88 IM~SION
TAB~ 4 Colllpo~it~on 31 32 33 34 135 ~ 37 38 39 ~ 41 42 P~ lOû 75 7~ 50 60 60 50 50 50 4û L~0 40 PBT - 20 15 35 3 20 ~5 40 25 55 50 30 es l~cat 155 136 123~ 34 125 11~~ 35 12~ 1351 35 ~ 27 10g 5 I~G ( ~) IZOD Il~'~A5T, ~iU~J3 t ~, 52 65 73 78 81 ,71 7g 8~ 40 45 51 (kg cm/cm) ~ g~
MO:D. ~ STICIT~
2 2300022700 2010024100 213001600023900215001370Q23100 215001' 7CU
IN BENDII`,'G (kg~cm ) ~,~ U~T. ~S~ 'rRE~S
R~;TE:NTrO!~ AFTE~R 120 MIN.- 73 77 81 82 79 80 86 82 85 88 84 I~"MERSION
TA~L~3 5 Col~posltlon 43 44 45 46 PC lC0 75 ~o 50 - -~0 Degre~ Vicat o 155 143 1~ 11 5 5 KG ~ C~
IZ013 I~PACT~ hV~
~g ~/CI!~ o ~
Mûl). EI A~TICI'rY
23~00221 00215~0 2û600 IN 3E~ING ~ cm ) ,~ UI,T. T~NSII.E STBESS
R~l~NlL01~ AFTER 120 M~V. _ 75 85 ~9 IM-'Y~RSION
Con~.positl on. ~7 P~ 100 60 5Q
Degrees ~lcat 5 ~G ~QC) ~55 741 114 IZOD II~PACT, N'OICHEI~
(kg cm~cm) ~
MOI 1o ELASTICT~Y c - ~ 23S)0022000 20200 IN 13~NDING (k~/cm ) ,~ ULT. TENSII,E STRESS
R~EI~rIûN AF~ 120 MIN. - 87 91 E RSION
TABI~i: 7 Compositlon 50 51 52 L~o D~gree~ yi cat 155 138 12~;
5 R~
IZOD IMP~CT, NOT~D
~kg c.~n/cm) ~a MOD. 3I~STICITY
Eh'DING (kg/cm ) 2300023700 Z1900 '~ U~T. TENSILE STRESS
REr};NTIOlq AFrEP~ 120 M~i. - 84 85 IM~;~SION
Composl~lon 53 j4 55 PC lOQ 60 50 -Degrecs V1 cat 5 KG ~~:~
IZOD IMPACT, 76 71 , 1~
(kg c~n/c~.) li,O~ ~9 ~OD. ELASTICITY &' ~ ~350~ 21500 lN B~NDING (kg~cm~) ,~ UIT. TENSILE STRESS
rIo~ AFTER ~ 20 MI~. ~ 87 89 I~RSION
TAi3~E 9 Co~ ltion 55 57 58 ~ 60 61 62 63 64 65 66 PC 80 50 ~0 50 80 50 ~0 5 5 5~ 60 :E~i3T 10 40 10 4~ 40 4 0 PE~ 10 L~o 10 ~0 30 EPR
-~ 5 5 5 5 5 5 E~rA 5 5 5 ~ ~3 D~gre~s ~ricz~ 5 KG(~C) 135 130 132 118 133 131 130 120 132 130 133 G3 IZOD IMPAC~ 63 71 54 59 60 65 53 58 62 58 66 ~k~ c~!fcm) MODo ELASTI~IT'f I~
~E~NDING ~kg/c~.2)2~ 5002010021200203002200021300214Q020700205002070019800 ,~ I;LT. TE~!S T LE STP~S
RErEN~ION A~ER 120 7 83 76 90 6& 81 75 93 86 83 88 MIN . II~I~RS IOh' Co~osltion 67 68 69 70 71 72 73 74 75 76 77 P~ ~ 5~ 5~ 50 ~0 6~ 60 50 ~0 60 60 PBT 40 ~0 40 4 4 ~ET 3~ 3 3 3 ~ 3 EPD.~ 2.5 2.5 2~5 2.5 EPR 5 5 5 5 2.5 Z~5 2.5 2.5 P~ 5 5 2.5 2.5 PP 5 5 5 2-5 2,3 ~VA 5 5 5 2.5 Z~5 2~5 2-5 ~gr~es Ylcat 5 ~G ~C) 131 128 129 126 126 l27 124 130 129 127 128 IZGD IMP~CT~ Nu~ 5~ 67 65 56 66 61 57 69 65 71 73 (kg cm~c~) MOD. EI~STICITY IN201002040Q2060019900Z0200 20300 19600 20700 20600 20200 2C400 DTI~ (k~/~m2?
,~v ULT. T3NSIL~ ST~ESS
RE~E.~rION hFT~R 120 gl 83 80 ~3 $~ 91 89 86 ~4 93 93 ~sIN. ~ S, ~
The da-ta obtained from ex~ples l to 77 are sho~m on tablcs 1 t~ lO.
ABBREilIATIO~lS
PC polycarbonate PET polyethylenet~erephthalate EPR ethylene-propylene rubber EP~M ethylene~propylene-diene monomer terpolymer PBT polybutyleneterephthalate PP polypropylene PE polyethylene EVA ethylene vinylace-tate copolymer.
RETE.~rION AFTER 120 MIN. - 63 7~ 92 94 91 90 91 89 ~ ERSICN
TA:13LE 2 -~ompositio~ 13 11 12 13 14 15 16 17 18 PC 100 75 75 60 60 60 5~ -50 - 5~
- 20 15 35 30 ''O 45 4 25 EPl~M . - 5 10 5 l O 20 5 10 25 Degrees ~icat 155 14~ 133 13~ 121 105 1 21 ~ 09 90 5 KG (C) IZOD IMPACr, N~;~
82 91 98 5~ 63 75 ( kg cm/cm 3 MO~. ELASTICITY
23000218001 950022500 2~1001510~230002050013200 IN BE!~DT~ ~kg~cm 3 ,~ VI.T. TENSTLE SlæSS
R~TENrION AFL'~R 12û MIN. -65 79 gO 95 93 93 94 87 IMI~IE~SION
Co~posit~ on 19 20 21 22 23 24 25 26 27 28 29 30 PC 1~0 75 75 60 ~0 60 50 50 50 40 40 4~
P13T _ 20 15 35 3~ 20 45 40 25 55 5 3 Degree~ VS C2-t 1~ 135 12~133 124 115131 122 1~$ 138 ~ ~7 107 5 I~G ~ C) IZOD IMPACT, NOTCHED
9Q 58 72 29 87 95 76 8~ 91 47 ~3 62 (3~g cm/cm) MOD~ ELASTICITY
~ 23000 22900 20200 24000 ~130~ 15700 24300 21700 1360~ 24200 2180~ 11300 IN BE~)ING (~g/cm ) ,g ULT. TENSILE STR}:SS
R~E~'TION AFr~ 120 MI~ 75 78 80 83 77 82 84 79 87 ao - 88 IM~SION
TAB~ 4 Colllpo~it~on 31 32 33 34 135 ~ 37 38 39 ~ 41 42 P~ lOû 75 7~ 50 60 60 50 50 50 4û L~0 40 PBT - 20 15 35 3 20 ~5 40 25 55 50 30 es l~cat 155 136 123~ 34 125 11~~ 35 12~ 1351 35 ~ 27 10g 5 I~G ( ~) IZOD Il~'~A5T, ~iU~J3 t ~, 52 65 73 78 81 ,71 7g 8~ 40 45 51 (kg cm/cm) ~ g~
MO:D. ~ STICIT~
2 2300022700 2010024100 213001600023900215001370Q23100 215001' 7CU
IN BENDII`,'G (kg~cm ) ~,~ U~T. ~S~ 'rRE~S
R~;TE:NTrO!~ AFTE~R 120 MIN.- 73 77 81 82 79 80 86 82 85 88 84 I~"MERSION
TA~L~3 5 Col~posltlon 43 44 45 46 PC lC0 75 ~o 50 - -~0 Degre~ Vicat o 155 143 1~ 11 5 5 KG ~ C~
IZ013 I~PACT~ hV~
~g ~/CI!~ o ~
Mûl). EI A~TICI'rY
23~00221 00215~0 2û600 IN 3E~ING ~ cm ) ,~ UI,T. T~NSII.E STBESS
R~l~NlL01~ AFTER 120 M~V. _ 75 85 ~9 IM-'Y~RSION
Con~.positl on. ~7 P~ 100 60 5Q
Degrees ~lcat 5 ~G ~QC) ~55 741 114 IZOD II~PACT, N'OICHEI~
(kg cm~cm) ~
MOI 1o ELASTICT~Y c - ~ 23S)0022000 20200 IN 13~NDING (k~/cm ) ,~ ULT. TENSII,E STRESS
R~EI~rIûN AF~ 120 MIN. - 87 91 E RSION
TABI~i: 7 Compositlon 50 51 52 L~o D~gree~ yi cat 155 138 12~;
5 R~
IZOD IMP~CT, NOT~D
~kg c.~n/cm) ~a MOD. 3I~STICITY
Eh'DING (kg/cm ) 2300023700 Z1900 '~ U~T. TENSILE STRESS
REr};NTIOlq AFrEP~ 120 M~i. - 84 85 IM~;~SION
Composl~lon 53 j4 55 PC lOQ 60 50 -Degrecs V1 cat 5 KG ~~:~
IZOD IMPACT, 76 71 , 1~
(kg c~n/c~.) li,O~ ~9 ~OD. ELASTICITY &' ~ ~350~ 21500 lN B~NDING (kg~cm~) ,~ UIT. TENSILE STRESS
rIo~ AFTER ~ 20 MI~. ~ 87 89 I~RSION
TAi3~E 9 Co~ ltion 55 57 58 ~ 60 61 62 63 64 65 66 PC 80 50 ~0 50 80 50 ~0 5 5 5~ 60 :E~i3T 10 40 10 4~ 40 4 0 PE~ 10 L~o 10 ~0 30 EPR
-~ 5 5 5 5 5 5 E~rA 5 5 5 ~ ~3 D~gre~s ~ricz~ 5 KG(~C) 135 130 132 118 133 131 130 120 132 130 133 G3 IZOD IMPAC~ 63 71 54 59 60 65 53 58 62 58 66 ~k~ c~!fcm) MODo ELASTI~IT'f I~
~E~NDING ~kg/c~.2)2~ 5002010021200203002200021300214Q020700205002070019800 ,~ I;LT. TE~!S T LE STP~S
RErEN~ION A~ER 120 7 83 76 90 6& 81 75 93 86 83 88 MIN . II~I~RS IOh' Co~osltion 67 68 69 70 71 72 73 74 75 76 77 P~ ~ 5~ 5~ 50 ~0 6~ 60 50 ~0 60 60 PBT 40 ~0 40 4 4 ~ET 3~ 3 3 3 ~ 3 EPD.~ 2.5 2.5 2~5 2.5 EPR 5 5 5 5 2.5 Z~5 2.5 2.5 P~ 5 5 2.5 2.5 PP 5 5 5 2-5 2,3 ~VA 5 5 5 2.5 Z~5 2~5 2-5 ~gr~es Ylcat 5 ~G ~C) 131 128 129 126 126 l27 124 130 129 127 128 IZGD IMP~CT~ Nu~ 5~ 67 65 56 66 61 57 69 65 71 73 (kg cm~c~) MOD. EI~STICITY IN201002040Q2060019900Z0200 20300 19600 20700 20600 20200 2C400 DTI~ (k~/~m2?
,~v ULT. T3NSIL~ ST~ESS
RE~E.~rION hFT~R 120 gl 83 80 ~3 $~ 91 89 86 ~4 93 93 ~sIN. ~ S, ~
The da-ta obtained from ex~ples l to 77 are sho~m on tablcs 1 t~ lO.
ABBREilIATIO~lS
PC polycarbonate PET polyethylenet~erephthalate EPR ethylene-propylene rubber EP~M ethylene~propylene-diene monomer terpolymer PBT polybutyleneterephthalate PP polypropylene PE polyethylene EVA ethylene vinylace-tate copolymer.
Claims (3)
1. A three component thermoplastic polymer blend comprising:
a) a bisphenol A polycarbonate;
b) one or more polyalkyleneterephthalates in which the number of carbon atoms of the alkylene radical is from 2 to 10, and c) a modifier of the impact energy absorption mechanism, chosen from the following:
I) a C2 or C3 polyolefin;
II) a C2-C3 olefin copolymer;
III) a mixture of (I) with (II) IV) a mixture of (I) with a copolymer of polyethylenevinyl-acetate (EVA) type; and V) a mixture of (I), (II) and a copolymer of polyethylene-vinylacetate (EVA) type such that the weight ratio of component c to component b is less than or equal to 1.
a) a bisphenol A polycarbonate;
b) one or more polyalkyleneterephthalates in which the number of carbon atoms of the alkylene radical is from 2 to 10, and c) a modifier of the impact energy absorption mechanism, chosen from the following:
I) a C2 or C3 polyolefin;
II) a C2-C3 olefin copolymer;
III) a mixture of (I) with (II) IV) a mixture of (I) with a copolymer of polyethylenevinyl-acetate (EVA) type; and V) a mixture of (I), (II) and a copolymer of polyethylene-vinylacetate (EVA) type such that the weight ratio of component c to component b is less than or equal to 1.
2. A thermoplastic polymer blend as defined in claim 1, characterised in that the quantity of component a varies between 5 and 95% by weight.
3. A thermoplastic polymer blend as defined in claim 1 or claim 2, characterised in that the quantity of component b + c varies between 5 and 95% by weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT20406/82A IT1199982B (en) | 1982-03-26 | 1982-03-26 | POLYCARBONATE-BASED THERMOPLASTIC POLYMERIC ALLOY |
| IT20406A/82 | 1982-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1196136A true CA1196136A (en) | 1985-10-29 |
Family
ID=11166445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000424517A Expired CA1196136A (en) | 1982-03-26 | 1983-03-25 | Polycarbonate-based thermoplastic polymers blend |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS58176241A (en) |
| AT (1) | AT381113B (en) |
| BE (1) | BE896271A (en) |
| CA (1) | CA1196136A (en) |
| CH (1) | CH653045A5 (en) |
| DE (1) | DE3310754A1 (en) |
| DK (1) | DK132383A (en) |
| ES (1) | ES8405051A1 (en) |
| FR (1) | FR2523990B1 (en) |
| GB (1) | GB2118193B (en) |
| IE (1) | IE54381B1 (en) |
| IT (1) | IT1199982B (en) |
| NL (1) | NL185672C (en) |
| NO (1) | NO166044C (en) |
| SE (1) | SE461736B (en) |
| ZA (1) | ZA831660B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4476274A (en) * | 1983-01-03 | 1984-10-09 | General Electric Company | Linear low density polyethylene impact modifier for thermoplastic polyesters |
| DE3416476A1 (en) * | 1984-05-04 | 1985-11-07 | Bayer Ag, 5090 Leverkusen | POLYCARBONATE-POLYALKYLENE TEREPHTHALATE MOLDS |
| US4587295A (en) * | 1985-01-02 | 1986-05-06 | General Electric Company | Polycarbonate composition |
| US4579910A (en) * | 1985-01-02 | 1986-04-01 | General Electric Company | Polycarbonate composition |
| DE3617070A1 (en) * | 1986-05-21 | 1987-11-26 | Basf Ag | THERMOPLASTIC MOLDS FROM POLYESTER AND POLYCARBONATE |
| DE3627131A1 (en) * | 1986-08-09 | 1988-02-11 | Basf Ag | THERMOPLASTIC MOLDS FROM POLYESTER AND POLYCARBONATE |
| GB8630819D0 (en) * | 1986-12-23 | 1987-02-04 | Exxon Chemical Patents Inc | Polycarbonate compositions |
| DE3855729T2 (en) * | 1987-09-17 | 1997-04-30 | Tonen Sekiyukagaku Kk | Thermoplastic composition |
| US4895899A (en) * | 1987-12-23 | 1990-01-23 | Uniroyal Chemical Company, Inc. | Impact resistant polyethylene terephthalate/polycarbonate/polyethylene graft copolymer blends |
| CA2001311A1 (en) * | 1988-11-14 | 1991-04-24 | Marvin L. Leutkens, Jr. | Thermal properties of a polyalkyleneterephthalate without significant loss of physical and low temperature properties |
| US5102952A (en) * | 1989-08-04 | 1992-04-07 | Rohm And Haas Company | Thermoplastic polymer compositions containing melt-rheology modifiers |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL127529C (en) * | 1962-07-04 | |||
| FR1368369A (en) * | 1962-07-04 | 1964-07-31 | Teijin Ltd | New polymeric molding composition and molded articles obtained therefrom |
| US3958064A (en) * | 1971-06-21 | 1976-05-18 | Minnesota Mining And Manufacturing Company | Magnetic recording tape |
| GB1375670A (en) * | 1971-06-21 | 1974-11-27 | ||
| JPS5726303B2 (en) * | 1974-04-04 | 1982-06-03 | ||
| JPS5139749A (en) * | 1974-10-02 | 1976-04-02 | Mitsubishi Gas Chemical Co | JUGOTAISOSE IBUTSU |
| JPS5813588B2 (en) * | 1975-02-04 | 1983-03-14 | 帝人株式会社 | thermoplastic resin composition |
| AU500523B2 (en) * | 1975-12-08 | 1979-05-24 | General Electric Company | Thermoplastic molding composition |
| US4002581A (en) * | 1975-12-08 | 1977-01-11 | General Electric Company | Foamed thermoplastic compositions of a linear polyester and an ionically crosslinked copolymer |
| US4226950A (en) * | 1978-07-06 | 1980-10-07 | General Electric Company | Plasticized, impact modified polycarbonates |
| JPS5726303A (en) * | 1980-07-23 | 1982-02-12 | Mitsubishi Heavy Ind Ltd | Fire furnace wall |
| DE3118697A1 (en) * | 1981-05-12 | 1982-12-02 | Bayer Ag, 5090 Leverkusen | "THERMOPLASTIC MOLDS BASED ON POLYCARBONATE, POLYALKYLENE TEREPHTHALATE AND, IF NECESSARY, ONE OR MORE POLYMERISATES" |
-
1982
- 1982-03-26 IT IT20406/82A patent/IT1199982B/en active
-
1983
- 1983-03-10 ZA ZA831660A patent/ZA831660B/en unknown
- 1983-03-14 GB GB08306970A patent/GB2118193B/en not_active Expired
- 1983-03-17 CH CH1483/83A patent/CH653045A5/en not_active IP Right Cessation
- 1983-03-18 SE SE8301493A patent/SE461736B/en not_active IP Right Cessation
- 1983-03-23 NO NO831023A patent/NO166044C/en unknown
- 1983-03-23 DK DK132383A patent/DK132383A/en not_active Application Discontinuation
- 1983-03-24 DE DE3310754A patent/DE3310754A1/en not_active Ceased
- 1983-03-24 FR FR8304876A patent/FR2523990B1/en not_active Expired
- 1983-03-25 ES ES521356A patent/ES8405051A1/en not_active Expired
- 1983-03-25 CA CA000424517A patent/CA1196136A/en not_active Expired
- 1983-03-25 IE IE675/83A patent/IE54381B1/en not_active IP Right Cessation
- 1983-03-25 NL NLAANVRAGE8301055,A patent/NL185672C/en not_active IP Right Cessation
- 1983-03-25 BE BE0/210401A patent/BE896271A/en not_active IP Right Cessation
- 1983-03-25 JP JP58050304A patent/JPS58176241A/en active Pending
- 1983-03-25 AT AT0106483A patent/AT381113B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATA106483A (en) | 1986-01-15 |
| GB8306970D0 (en) | 1983-04-20 |
| DK132383D0 (en) | 1983-03-23 |
| NL185672C (en) | 1990-06-18 |
| SE8301493L (en) | 1983-09-27 |
| IT8220406A0 (en) | 1982-03-26 |
| JPS58176241A (en) | 1983-10-15 |
| ZA831660B (en) | 1983-12-28 |
| NO831023L (en) | 1983-09-27 |
| GB2118193B (en) | 1986-01-15 |
| DK132383A (en) | 1983-09-27 |
| NL8301055A (en) | 1983-10-17 |
| DE3310754A1 (en) | 1983-09-29 |
| NO166044C (en) | 1991-05-22 |
| FR2523990A1 (en) | 1983-09-30 |
| GB2118193A (en) | 1983-10-26 |
| AT381113B (en) | 1986-08-25 |
| CH653045A5 (en) | 1985-12-13 |
| BE896271A (en) | 1983-09-26 |
| ES521356A0 (en) | 1984-05-16 |
| ES8405051A1 (en) | 1984-05-16 |
| FR2523990B1 (en) | 1986-10-10 |
| IT1199982B (en) | 1989-01-05 |
| SE8301493D0 (en) | 1983-03-18 |
| SE461736B (en) | 1990-03-19 |
| IE830675L (en) | 1983-09-26 |
| NL185672B (en) | 1990-01-16 |
| NO166044B (en) | 1991-02-11 |
| IE54381B1 (en) | 1989-09-13 |
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