Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1998-02-12
2000-05-16
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 99, 525273, 5253338, 525387, C08L 2330, C08L 5300
Patent
active
060638672
ABSTRACT:
The present invention provides a method for creating durable blends of polystyrene and polyolefin. The blends of the present invention have improved mechanical properties evidenced by measurement of impact strength, tensile strength, and elongation at break. Polyolefin is first crosslinked by creating a melt of polyolefin and a small amount of peroxide in a mixer at elevated temperature. The crosslinked polyolefin is then melt-blended with polystyrene at elevated temperature. Finally, a styrene-butadiene-styrene block copolymer is mixed into the melt. The method of the present invention can be applied to various blend systems of otherwise incompatible polymers provided it contains at least one component and a compatibilizer that are crosslinkable.
REFERENCES:
patent: 4386188 (1983-05-01), Grancio et al.
patent: 4464439 (1984-08-01), Castelein
patent: 5159016 (1992-10-01), Inoue et al.
patent: 5250618 (1993-10-01), Fasulo et al.
patent: 5278232 (1994-01-01), Seelert et al.
patent: 5334657 (1994-08-01), Swartzmiller et al.
patent: 5461111 (1995-10-01), Modic et al.
patent: 5516845 (1996-05-01), Heese et al.
patent: 5532315 (1996-07-01), Bonekamp et al.
patent: 5539052 (1996-07-01), Shieh et al.
Chan Chi-Ming
Shen Jiarui
Wang Zhi
Asinovsky Olga
Seidleck James J.
The Hong Kong University of Science & Technology
LandOfFree
Stable polymer blends from a two-step crosslinking process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stable polymer blends from a two-step crosslinking process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable polymer blends from a two-step crosslinking process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-259648