Dense star polymers having two dimensional molecular diameter

Details Dense star polymers having two dimensional molecular diameter Dense star polymers having two dimensional molecular diameter

1985-07-19

1986-05-06

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

525410, 525416, 525418, 525451, 528310, 528332, 528350, 528373, 528271, 528374, 528376, 528397, 528403, 528405, 528425, C08G 6900

Patent

active

045873291

ABSTRACT:
Dense star polymers having terminal group densities greater than conventional extended star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, hydroxy-terminated polyether dense star polymer can be prepared from pentaerythrityltetrabromide and 4-hydroxymethyl-2,6,7-trioxabicyclo[2.2.2]-octane which has a molecular volume less than 80 percent of the volume of a conventional extended star polymer made from similar materials. Such dense star polymers are useful as demulsifiers for oil/water emulsions, wet strength agents in the manufacture of paper, proton scavengers, calibration standards for electron microscopy, and agents for modifying viscosity in aqueous formulations such as paints.

REFERENCES:
patent: 4507466 (1985-03-01), Tomalia et al.
Tomalia et al., Polymer Journal, vol. 17, No. 1, pp. 117-132 (1985).

Affiliated with

Also associated with

Rating

Dense star polymers having two dimensional molecular diameter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dense star polymers having two dimensional molecular diameter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dense star polymers having two dimensional molecular diameter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1575391