Title:
【発明の名称】ポリオールに流動性添加物を混入する方法およびその方法を実施するための装置
Document Type and Number:
Japanese Patent JPH03502185
Kind Code:
A
Abstract:
Process for admixing free-flowing additives, such as a liquid crosslinking agent and/or a dye solution, to polyol, in particular before manufacturing articles from PUR foam, and device for implementing the process. The polyol (2) and each free-flowing additive (4) are transferred, in discrete portions and in predetermined relative ratios, from a tank (1) with a capacity of several cubic metres or from one or more supply drums (3) to a mixing device (7), by means of an individual dosing pump (5) for each substance. The mixing device (7) prepares from these portions a limited refill quantity of polyol for the service tank (9) of a device for processing the prepared polyol. The limited refill quantity then passes through a heat exchanger (8) connected downstream of the mixing device (7) and which adjusts the temperature of the limited refill quantity to essentially that - usually higher - of the service tank (9). The tempered, limited refill quantity is then fed continuously from the heat exchanger (8) to the service tank (9) connected downstream whenever the liquid level exceeds a predetermined minimum level.
Inventors:
Lavers, Guyunter
Application Number:
JP50051890A
Publication Date:
May 23, 1991
Filing Date:
November 08, 1989
Export Citation:
Assignee:
Kletschner Hueromatake Desma Gezershyaft Mitz Besilenktel Haftung
International Classes:
C08G18/00; B01F3/08; B29B7/88; B29B7/94; (IPC1-7): B29B7/94; C08G18/00
Attorney, Agent or Firm:
Toshio Yano (2 outside)