Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1985-12-17
1988-03-22
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 95, 525 98, 526346, 526347, C08L 5302, C08F21206
Patent
active
047329360
ABSTRACT:
Disclosed are copolymers of alpha methylstyrene and para methylstyrene having Ring & Ball softening points greater than 140.degree. C., a Tg of greater than 100.degree. C. to 110.degree. C., a weight average molecular weight (Mw) of less than 15,000, and a molecular weight distribution of about 2 to about 3. These copolymers are useful in adhesives, sealants and molding compounds, especially as reinforcing or modifier resins for thermoplastic block copolymers having aromatic and aliphatic blocks contained in pressure sensitive adhesives.
REFERENCES:
patent: 2302464 (1942-10-01), Palmer et al.
patent: 3000868 (1961-09-01), Powers
patent: 3630981 (1971-12-01), Finfinger et al.
patent: 3640981 (1972-02-01), Davis
patent: 3753961 (1973-08-01), Cyr
patent: 3803079 (1974-04-01), Hokama
patent: 3956250 (1976-05-01), Campbell et al.
patent: 4063011 (1977-12-01), Campbell et al.
patent: 4113801 (1978-09-01), Douglas et al.
patent: 4259220 (1981-03-01), Bunnelle et al.
patent: 4306049 (1981-12-01), Prapas
Nakajima, N., "Polymer Molecular Weight Methods", A.C.S. Advances in Chem. Series 125, A.C.S., Wash., D.C. (1973), pp. 98-107.
"Polymer Handbook", Biandrup, J. (ed.), Wiley-Interscience, N.Y., N.Y. (1975), p. III-154.
Hercules Incorporated
Horn Joanne L.
Luther John P.
Schofer Joseph L.
Staves Marion C.
LandOfFree
Alpha methylstyrene and para methylstyrene copolymers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alpha methylstyrene and para methylstyrene copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alpha methylstyrene and para methylstyrene copolymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-442503