Adesso Advanced Materials Wuhu Co., Ltd.

Connora Technologies, Inc.

Adesso Avanced Materials Wuhu Co., Ltd.

Adesso Advanced Materials Wuxi Co., Ltd.

Bing Qin

Bo Liang

Xin Li

Stefan J Pastine

Stefan Pastine

The present invention relates to methods for recycling reinforced composites. The reinforced composite comprises a reinforcement material in a cross-linked polymer matrix, wherein the cross-linked polymer comprises a cross-linking group derived from a curing agent represented by formula I, wherein Ris hydrogen, alkyl, cylcoalkyl, heterocycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, alkoxy alkyl or alkynyl; A is alkyl, alkenyl, alkenene, alkylene-hetero-alkylene, alkylene-heterocyclo-alkylene, alkylene, alkylene-oxy-alkylene, 1,4-alkyl substituted piperazine, carbonyl, thiocarbonyl; B is alkyl, alkenyl, alkenene, alkylene-hetero-alkylene, alkylene-heterocyclo-alkylene, alkylene, alkylene-oxy-alkylene, 1,4-alkyl substituted piperazine, carbonyl, thiocarbonyl; Ris hydrogen, alkyl, aminoalkyl, alkyl-amino-alkyl, cylcoalkyl, heterocycloalkyl, alkenyl, aryl, or heteroaryl; and Ris hydrogen, alkyl, aminoalkyl, alkyl-amino-alkyl, cylcoalkyl, heterocycloalkyl, alkenyl, aryl, or heteroaryl. 

Methods for recycling reinforced composites

The present invention provides recyclable copper clad laminates (CCLs) each including copper foil and a recyclable/degradable fiber composition, and printed circuit boards that are made of or include the CCLs of this invention. Also provided are method for recycling these CCLs and printed circuit boards.

Recyclable copper clad laminates containing fiber composition

This invention provides, among others, curing agents of Formula II, methods for preparing these curing agents, prepreg materials, degradable cross-linked polymers and reinforced composites made from these curing agents and epoxy resins, and methods for degrading and/or recycling the degradable polymers and reinforced composites. 

Degradable hydrazone curing agents and applications thereof

The present invention provides, among others, compounds of Formula (I) or a salt thereof, methods for making these compounds, degradable polymers and reinforced composites made therefrom, and methods for degrading and/or recycling the degradable polymers and reinforced composites. 

Curing agents and degradable polymers and composites based thereon

The present invention provides, among others, compounds of the following formula which can be used as degradable curing agents, methods for preparing the compounds, degradable polymers and reinforced composites, methods for degrading and recycling the polymers and composites. 

Cyclic acetal, cyclic ketal diamines epoxy curing agents and degradable polymers and composites based thereon

Compounds of formula I, uses as crosslinking agents or curing agents thereof, and resins obtained by using the compounds as crosslinking agents.

Agents for reworkable epoxy resins

The present invention relates to a reinforced composite and method for recycling the same. The reinforced composite comprises a reinforcement material in a cross-linked polymer matrix, wherein the cross-linked polymer comprises a cross-linking group derived from a curing agent represented by formula (I), Wherein Ris hydrogen, alkyl, cycloalkyl, heterocycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, alkoxy alkyl or alkynyl; A is alkyl, alkenyl, alkenene, alkylene-hetero-alkylene, alkylene-heterocyclo-alkylene, alkylene, alkylene-oxy-alkylene, 1,4-alkyl substituted piperazine, carbonyl, thiocarbonyl; B is alkyl, alkenyl, alkenene, alkylene-hetero-alkylene, alkylene-heterocyclo-alkylene, alkylene, alkylene-oxy-alkylene, 1,4-alkyl substituted piperazine, carbonyl, thiocarbonyl; Ris hydrogen, alkyl, aminoalkyl, alkyl-amino-alkyl, cycloalkyl, heterocycloalkyl, alkenyl, aryl, or heteroaryl; and Ris hydrogen, alkyl, aminoalkyl, alkyl-amino-alkyl, cycloalkyl, heterocycloalkyl, alkenyl, aryl, or heteroaryl. 

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