PROCEDURE FOR INTRODUCTION OF ADDITIVES INTO POLYMER MELT Russian patent published in 2011 - IPC C08J3/20 C08J3/205 

Abstract RU 2418010 C2

FIELD: metallurgy.

SUBSTANCE: procedure consists in discharge of polymer melt from reactor of final poly-condensation. This discharge is performed continuously thus forming unloaded flow of polymer melt. Said flow is hardened forming particles by means of an underwater granulator. Before hardening a part of unloaded flow of melt is supplied into an adjacent jet. There is formed polymer melt of adjacent jet. Additive is supplied to the said melt of adjacent jet forming adjacent jet containing additive. Adjacent jet containing additive is supplied to a place upstream from the place of initial adjacent jet forming at the stage of solidification. Additive is chosen from anti-oxidants, substances absorbing ultra-violet light, deactivators of catalyst metal, dyes reducing amount of acetaldehyde or oxidised compounds raising rate of repeated overheat of additive, additives reducing adhesiveness of bottles facilitating oxygen proofness of materials, and combinations of said substances.

EFFECT: improved process for production of poly-ether particles at low CC (characteristic of conditioning) eliminating solid phase polymerisation for additional increase of molecular weight.

39 cl, 2 dwg

Similar patents RU2418010C2

Title Year Author Number
ALUMINIUM-CONTAINING POLYESTER POLYMERS, HAVING LOW RATE OF FORMATION OF ACETALDEHYDE 2006
  • Dzhernigan Mehri Tereza
  • Armentraut Rodni Skott
  • Venett Kenrik Lajl
  • Debruin Brjus Rodzher
RU2448124C2
POLYESTER POLYMERS WITH LOW RATE OF FORMATION OF ACETALDEHYDE AND HIGH CONCENTRATION OF TERMINAL VINYL GROUPS 2008
  • Dzhernigan Mehri Tereza
RU2458074C2
POLYESTERS CONTAINING ALUMINIUM/ALKALI METAL OR ALKALI/TITANIUM, HAVING HIGH REHEATING CAPACITY, IMPROVED COLOUR AND TRANSPARENCY 2006
  • Kvillen Donna Rajs
  • Armentraut Rodni Skott
  • Dzhernigan Mehri Tereza
  • Stehfford Stiven Li
  • Sja Chzhijun
RU2434900C2
HIGH-MOLECULAR WEIGHT POLYMER ESTERS CHARACTERISED BY LOW CONTENT OF ACETALDEHYDE 2008
  • Dzhernigan Mehri Tereza
RU2474592C2
COMPOSITIONS AND METHOD FOR IMPROVEMENT OF PET REPEATED HEATING SPEED WITH APPLICATION OF ACTIVATED COAL 2004
  • Kvillen Donna Rajs
  • Khauehll Ehrl Ehdmondson Ml.
RU2364610C2
POLYESTER POLYMER WITH HIGH CHARACTERISTIC VISCOCITY OF MOLTEN PHASE, CATALYSED WITH ANTIMONY-CONTAINING COMPOUNDS 2005
  • Dzhernigan Mehri Tereza
  • Ehkart Majkl Pol
  • Bonner Richard Dzhill
RU2376323C2
POLYMERS BASED ON POLYESTERS HAVING HIGH INTRINSIC VISCOSITY OF MOLTEN PHASE WITH SUITABLE RATE OF FORMATION OF ACETALDEHYDE 2006
  • Dzhernigan Mehri Terez
RU2402575C2
SPHEROIDAL PARTICLES OF POLYESTER POLYMERS 2005
  • Uehjnkhold Stefen
  • Kolkhaun Frederik Lesli
  • Ehkart Majkl Pol
  • Gehmbl Bendzhamin Brehdford
RU2386645C2
REMOVAL OF RESIDUAL ACETALDEHYDE FROM POLYESTER PARTICLES 2005
  • Armentraut Rodni Skott
  • Kolkhaun Frederik Lesli
  • Ehkart Majkl Pol
  • Debruin Brjus Rodzher
RU2388767C2
POLYESTER PARTICLES HAVING SMALL MOLECULAR MASS GRADIENT FROM SURFACE TO CENTRE 2005
  • Kolkhaun Frederik Lesli
  • Ehkart Majkl Pol
  • Dzhernigan Mehri Tereza
  • Uehjnkhold Stefen
RU2384590C2

RU 2 418 010 C2

Authors

Debruin Brjus Rodzher

Vennett Kenrik Lajl

Dates

2011-05-10Published

2006-09-05Filed