Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Styrene | HCID 7501 | — |
| Reactant | Maleic Anhydride | HCID 7923 | — |
| Reactant | Propylene | HCID 8252 | — |
| Reactant | (1,3-Phenylenebis(1-methylethylidene))bis(tert-butyl) peroxide | HCID 16654 | — |
| Product | Lytron 810 | HCID 62707 | — |
| Product | HCID 178435178 | HCID 178435178 | — |
Reaction Steps
With 100 parts by weight of the starting propylene block copolymer were uniformly mixed by a Henschel mixer 1.0 part by weight of maleic anhydride, 0.5 part by weight of styrene, 0.6 part by weight of the propylene homopolymer containing as free-radical initiator 8% by weight of 1,3-bis(t-butylperoxyisopropyl)benzene (Sanperox®-TYl.3, mfd. by Sanken Kako Co., Ltd) supported thereon, and 0.1 part by weight of Irganox® 1010 (mfd. by Ciba-Geigy Ltd.) as stabilizer. The resulting mixture was melt-kneaded by means of a TEX 44 SS-30BW-2V type twin screw extruder mfd. by JAPAN STEEL WORKS. LTD., at a temperature Of 220° C. for an average residence time of 1.5 minutes to obtain a (maleic anhydride-styrene)-modified highly crystalline polypropylene (A) having an amount of maleic anhydride added of 0.33% by weight, an amount of styrene added of 0.14% by weight and a melt flow rate of 10 g/10 min. Said modified highly crystalline polypropylene (A) is hereinafter abbreviated as MS-PP-3.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05093404 |
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| Source dataset | uspto-grants-1992_03 |
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| ORD ID | ord-480a88f49ab845c7865347fe454220ca |
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| Source note | uspto-grants-1992_03 |
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