MXPA98001763A - Compositions for high module straps and straps made with me - Google Patents
Compositions for high module straps and straps made with meInfo
- Publication number
- MXPA98001763A MXPA98001763A MXPA/A/1998/001763A MX9801763A MXPA98001763A MX PA98001763 A MXPA98001763 A MX PA98001763A MX 9801763 A MX9801763 A MX 9801763A MX PA98001763 A MXPA98001763 A MX PA98001763A
- Authority
- MX
- Mexico
- Prior art keywords
- parts
- weight
- peroxide
- straps
- hnbr
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 10
- PIMBTRGLTHJJRV-UHFFFAOYSA-L zinc;2-methylprop-2-enoate Chemical compound [Zn+2].CC(=C)C([O-])=O.CC(=C)C([O-])=O PIMBTRGLTHJJRV-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 150000002978 peroxides Chemical class 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 150000001451 organic peroxides Chemical class 0.000 claims description 4
- -1 t-butylperoxy Chemical group 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims 4
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical group CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 9
- 230000001360 synchronised Effects 0.000 abstract description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 abstract description 2
- 150000008360 acrylonitriles Chemical class 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-tris(prop-2-enoxy)-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000160765 Erebia ligea Species 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N TMPTA Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 230000000111 anti-oxidant Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229940096522 trimethylolpropane triacrylate Drugs 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-M valerate Chemical compound CCCCC([O-])=O NQPDZGIKBAWPEJ-UHFFFAOYSA-M 0.000 description 1
- 229940070710 valerate Drugs 0.000 description 1
Abstract
A high modulus composition based on a mixture of hydrogenated acrylonitrile butadene rubber that has been modified with either zinc methacrylate or with a combination of zinc oxide and methacrylic acid and an unmodified hydrogenated acrylonitrile butadene rubber for use in belt belts. Synchronous drive with high face support and straps made with the same
Description
COMPOSITIONS FOR HIGH MODULE STRAPS AND BELTS MADE WITH THE SAME
Field of the Invention
This invention relates to a high modulus elastomer composition suitable particularly for use in synchronous drive belts that bear load.
Background
The use of hydrogenated acrylonitrile-butadene rubber (HNBR) in belts, particularly for automotive use, has been suggested in the past. See for example the articles by Trevor A. Brown: "Compounding for maximum Heat Resistance and Load Bearing Capacity in HNBR Belts", Rubber World magazine, October 1993, page 53, and "Using HNBR to Improve Belt Compounds", Rubber & Plastics News, June 7, 1993, page 45. See also United States Patent 5,405,690. However, there are no suggestions as to what the compositions should be.
SUMMARY OF THE INVENTION In accordance with the practice of the present invention, there is provided an elastomeric composition comprising:
a) from 50 to 95 parts by weight of 100 parts of rubber (phr) of a HNBR modified with both zinc methacrylate and with a combination of zinc oxide and methacrylate acid; b) from 5 to 50 phr of an unmodified HNBR; c) 0.5 to 10 phr of a peroxide cure coagent; d) from 0.25 to 20 phr of an organic peroxide, -; e) of 1 20 phr of phenolic resin.
A typical example of a HNBR modified with zinc oxide and methacrylic acid is commercially available as Zetpol ZSC2295 from the company Nippon Zeon Co. An unmodified HNRB is available as Zetpo 2020, also from Nippon Zeon Co.
Typical peroxide cure co-agents are trimethylolpropane tri-acrylate, trifunctional organosiloxanes, triallyl cyanurate and triallyl isocyanurate. While the 0.5 to 10 phr agents can be used, the preferred ones are from 1 to 6 phr.
Typical organic peroxides which may be used with the invention are 1,3-bis (t-butylperoxy-1-propyl) -annum, dicumyl peroxide and valerate a, -bis (t-butylperoxy) While peroxides of 0.25 to 20 phr, the preferred ones are 1.5 to 4.5 phr.
Typical phenolic resins that can be used are phenol formalehide resins. The preferred one is a modified oil-modified thermofragmented phenol formaldehyde resin. While the resin of 1 to 20 phr can be used, the preferred one is 6 to 12 phr. It is believed that the phenolic resin provides a high level of adhesion for strengthening in the cured areas as well as allowing the belts to be constructed of conventional elastomer processing equipment without the use of solvents.
In addition to those ingredients mentioned above, the composition may contain other materials that are frequently used in rubber compounds such as fillers, antioxidants, antiozonants, processing aids, etc. Particular preference is given to 5 to 50 phr of carbon black N330.
The composition of the invention found that provide synchronous drive belts with teeth that have sufficient rigidity without using the reinforcement fiber. With a measure of this property, it is preferred that the modules at an elongation of 10% be from 5.2 to 7.35 MPa.
While certain representative embodiments and details were shown for the purpose of illustration of the invention, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. An elstomeric composition that is characterized by a) from 50 to 95 parts by weight of a HNBR modified with both zinc methacrylate and with a combination of zinc oxide and methacrylate acid; b) from 5 to 50 parts by weight of an unmodified HNBR; c) 0.5 to 10 parts by weight of a co-peroxide cure agent; d) from 0.25 to 20 parts by weight of an organic peroxide, and; e) of 1 20 parts by weight of phenolic resin.
2. the composition according to claim 1 further comprises from 5 to 50 parts by weight of carbon black.
3. the composition according to claim 1, wherein the peroxide curing agent is trimethylolpropane trimethacrylate.
4. The composition of claim 1, wherein the peroxide is a, -valerate-bis (t-butylperoxy)
5. The composition according to claim 2, which has an elongation modulus of 10% from 5.2 to 7.25 MPa.
6. An energy transmission belt produced from an elastomeric composition characterized by: a) from 50 to 95 parts by weight of a HNBR modified with both zinc methacrylate and with a combination of zinc oxide and methacrylate acid; b) from 5 to 50 parts by weight of an unmodified HNBR; c) 0.5 to 10 parts by weight of a co-peroxide cure agent; d) from 0.25 to 20 parts by weight of an organic peroxide, and; e) of 1 20 parts by weight of phenolic resin.
7. A strap according to claim 6 which further comprises from 5 to 50 phr of carbon black.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/816,973 | 1997-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MXPA98001763A true MXPA98001763A (en) | 1999-02-24 |
Family
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