Processes for preparing tougheners for thermoset compositions

Details Processes for preparing tougheners for thermoset compositions Processes for preparing tougheners for thermoset compositions

2007-12-04

2007-12-04

Sellers, Robert (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C525S107000, C525S118000, C525S123000, C525S132000, C525S143000, C525S162000, C525S163000, C525S168000, C525S170000, C525S182000, C525S183000, C525S185000, C525S208000, C525S217000, C525S222000, C526S230000, C526S232300, C526S232500, C526S320000, C526S328000, C526S328500, C526S329700

Reexamination Certificate

active

10922539

ABSTRACT:
Liquid rubbers that are ordinarily immiscible in liquid thermoset resins can be made miscible by the addition of at least one non-functional aromatic end-group to the polymer chains of such liquid rubber compositions. Such addition may be initiated by high-temperature peroxides in non-functional aromatic solvents. The liquid rubbers are found to improve the fracture toughness of cured thermoset resins while maintaining dimensional and heat resistance.

REFERENCES:
patent: 4460746 (1984-07-01), Fock et al.
patent: 5312956 (1994-05-01), Bertsch
patent: 5576386 (1996-11-01), Kempter et al.
patent: 6433098 (2002-08-01), Brown et al.
patent: 6566549 (2003-05-01), Greenblatt et al.
patent: 6605681 (2003-08-01), Villalobos et al.
patent: 6812302 (2004-11-01), La Fleur
patent: 2003/0022992 (2003-01-01), LaFleur
patent: 2003/0050397 (2003-03-01), LaFleur
patent: 2005/0101747 (2005-05-01), La Fleur
patent: 0455099 (1991-06-01), None
patent: 2 385 742 (1978-10-01), None
Mulhaupt, R., “Flexibility or Toughness?—The Design of Thermoset Toughening Agents”, Chimia 44 (1990), pp. 43-45.

Affiliated with

Also associated with

Rating

Processes for preparing tougheners for thermoset compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processes for preparing tougheners for thermoset compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for preparing tougheners for thermoset compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3890189