PATENT CLAIM ANALYSIS

Application Number: 16014079
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["528", "405000"]

Abstract:
The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): wherein at least one of M 1  or M 2  is selected from Ni(II) and Ni(III)-X. A process for the reaction of carbon dioxide with an epoxide; an epoxide and an anhydride; and/or a lactide and/or a lactone in the presence of the catalyst is also described.

Claim (Index 1):
A catalyst of formula (I): wherein:\n M 1  and M 2  are independently selected from Zn(II), Cr(II), Co(II), Cu(II), Mn(II), Mg(II), Ni(II), Fe(II), Ti(II), V(II), Cr(III)-X, Co(III)-X, Mn(III)-X, Ni(III)-X, Fe(III)-X, Ca(II), Ge(II), Al(III)-X, Ti(III)-X, V(III)-X, Ge(IV)-(X) 2  or Ti(IV)-(X) 2 ; \n wherein at least one of M 1  or M 2  is selected from Ni(II) and Ni(III)-X; \n R 1  and R 2  are independently selected from hydrogen, halide, a nitro group, a nitrile group, an imine, an amine, an ether group, a silyl group, a silyl ether group, a sulfoxide group, a sulfonyl group, a sulfinate group or an acetylide group or an optionally substituted alkyl, alkenyl, alkynyl, haloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylthio, arylthio, alicyclic or heteroalicyclic group; \n R 3  is independently selected from optionally substituted alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene, arylene, heteroarylene or cycloalkylene, wherein alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene and heteroalkynylene, may optionally be interrupted by aryl, heteroaryl, alicyclic or heteroalicyclic; \n R 5  is independently selected from H, or optionally substituted aliphatic, heteroaliphatic, alicyclic, heteroalicyclic, aryl, heteroaryl, alkylheteroaryl or alkylaryl; \n E 1  is C, E 2  is O, S or NH or E 1  is N and E 2  is O; \n E3, E4, E5 and E6 are selected from N, NR 4 , O and S, wherein when E3, E4, E5 or E6 are N,   is  , and wherein when E3, E4, E5 or E6 are NR 4 , O or S,   is  ; \n R 4  is independently selected from hydrogen, or optionally substituted aliphatic, heteroaliphatic, alicyclic, heteroalicyclic, aryl, heteroaryl, alkylheteroaryl or alkylaryl; \n X is independently selected from OC(O)R x , OSO 2 R x , OSOR x , OSO(R x ) 2 , S(O)R x , OR x , phosphinate, halide, nitrate, hydroxyl, carbonate, amino, nitro, amido or optionally substituted aliphatic, heteroaliphatic, alicyclic, heteroalicyclic, aryl or heteroaryl; \n R x  is independently hydrogen, or optionally substituted aliphatic, haloaliphatic, heteroaliphatic, alicyclic, heteroalicyclic, aryl, alkylaryl or heteroaryl; and \n G is absent or independently selected from a neutral or anionic donor ligand which is a Lewis base.

Metadata:
- Claim Count in Document: 140.0
- Percentile: 94.0
- Lexical Diversity: 1.80702
- Patent Class: 528.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15327677', '14201299', '15327806', '14891148', '13106625']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7778763875305438
- 35 USC 102 Novelty (BERT): 0.5696985380191948
- Combined Prediction Score: 0.7570586025794088
- Mean Citation Score: 345.47933600000016
- Max Citation Score: 453.5339
- Similarity Product: 448.5826397875667

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test