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Encapsulation of reactive components for 1-k systems using coaxial dies

A coaxial nozzle, reactive technology, used in the field of core-shell particle preparation, can solve the problems of organic material size and mechanical instability

Inactive Publication Date: 2012-10-03
EVONIK ROEHM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a disadvantage for industrial applications such as the encapsulation of reactive components is the dimensional and mechanical instability of such organic materials

Method used

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  • Encapsulation of reactive components for 1-k systems using coaxial dies
  • Encapsulation of reactive components for 1-k systems using coaxial dies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0076] equipment

[0077] Refer to accompanying drawing for reference signs figure 1 .

[0078] Rheometer: Haake RheoStress 600

[0079] Measuring body: plate (solvent trap) / cone, DC 60 / 2°

[0080] Sample container filling: 5.9ml sodium silicate solution

[0081] Measuring temperature: 23.0°C

[0082] Measurement: after 120s at 500rpm

[0083] Frequency generator: Black Star 1325 and Jupiter 2000 1

[0084] Transformer: Heinzinger LNG 16-6 (or similar) 1

[0085] Light 5: Drelloscop 2008

[0086] Pump:

[0087] Piston diaphragm pump + pulsation damper: LEWA EEC 40-13 2b

[0088] Gear pump: Gather CD 71K-2 3b

[0089] Flow through pump: for 350 / 500μm nozzle

[0090] Piston diaphragm pump + pulsation damper for sodium silicate solution: 1.5-5 l / h

[0091] Gear pump for initiator-oil suspension: 1-2 l / h

[0092] Pretreatment of sodium silicate solution

[0093] 1.3 liters of commercial sodium silicate solution with a solids content of 40% by weight and a dynamic vis...

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Abstract

The invention relates to the production of core-shell particles for encapsulating reactive components for single-component resin systems. In particular, the invention relates to the encapsulation of radical initiators such as peroxides. The invention further relates to a method for the 100% encapsulation of reactive components, whereby novel, storage-stable resin systems can be provided. At the same time, the core-shell particles are designed such that they can be opened nearly completely, easily and quickly during application, but have sufficient storage and shear stability before application.

Description

technical field [0001] The present invention encompasses the preparation of core-shell particles for encapsulating the reactive components of a one-component resin system. The present invention more particularly encompasses the encapsulation of free radical initiators such as peroxides. The present invention further encompasses a method for 100% encapsulation of reactive components so that new storage-stable resin systems can be achieved. At the same time, the core-shell particles are constructed in such a way that they can be opened easily, rapidly and almost completely when applied, but they have sufficient storage and shear stability before application. Background technique [0002] One-component reactive systems can be used in a wide variety of fields. Such systems are of particular importance in the field of sealants, adhesives and plugging resins, as described, for example, in DE 4315788 . However, it is also potentially possible to use curable one-component systems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/04A23K1/00A23P1/04A61K8/11A61K9/50C09B67/00
CPCA23K1/004A23L1/0029A61K9/4816A61K8/11B01J13/04C09B67/0097A61K2800/42A61K2800/412A61K9/4833A61K2800/10A61Q19/00A23K40/30A23P10/30Y10T428/2984
Inventor M·米尔巴赫P·斯特纳S·苏尔P·纽吉鲍尔H·希贝G·施密特P·里恩哈德
Owner EVONIK ROEHM GMBH
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