PATENT CLAIM ANALYSIS

Application Number: 15744513
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["526", "160000"]

Abstract:
Catalyst systems with single site transition metal complexes (such as pyridyldiamido transition metal complexes), an activator, and a metal hydrocarbenyl chain transfer agent (preferably an aluminum vinyl-transfer agent) are disclosed for use in alkene polymerization.

Claim (Index 31):
A catalyst system comprising an activator; and aluminum vinyl transfer agent represented by the formula: Al(R\u2032) 3-v (R\u2033) v , wherein each R\u2032, independently, is a C 1  to C 30  hydrocarbyl group; each R\u2033, independently, is a C 4  to C 20  hydrocarbenyl group having an allyl chain end; v is from 0.01 to 3; and a transition metal complex represented by the formula: wherein (1) M is a group 4 metal, preferably hafnium; (2) N is nitrogen; (3) L 7  is a group that links R 50  to Z\u2032 by a three atom bridge with the central of the three atoms being a group 15 or 16 element that preferably forms a dative bond to M, and is a C 5 -C 20  heteroaryl group containing a Lewis base functionality, especially a divalent pyridinyl or substituted pyridinyl group; (4) Z\u2032 is a divalent linker group, (R 56 ) p C\u2014C(R 57 ) q , where R 56  and R 57  are independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, and wherein adjacent R 56  and R 57  groups may be joined to form an aromatic or saturated, substituted or unsubstituted hydrocarbyl ring, wherein the ring has 5, 6, 7 or 8 ring carbon atoms and where the substituents on the ring can join to form additional rings, and p is 1 or 2 and q is 1 or 2; (5) R 50  and R 53  are each, independently, ER 54 R 55  with E being carbon, silicon or germanium, and each R 54  and R 55  being independently selected from the group consisting of hydrogen, hydrocarbyls, substituted hydrocarbyls, alkoxy, silyl, amino, aryloxy, halogen and phosphino, and R 54  and R 55  may be joined to form a saturated heterocyclic ring, or a saturated substituted heterocyclic ring where substitutions on the ring can join to form additional rings; (6) R 51  and R 52  are independently selected from the group consisting of hydrocarbyls, substituted hydrocarbyls, silylcarbyls and substituted silylcarbyl groups; and (7) each X is independently a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 86.0
- Lexical Diversity: 1.27273
- Patent Class: 526.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15869984', '15869906', '15869941', '15744475', '14540118']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7659448314083628
- 35 USC 102 Novelty (BERT): 0.5657664721792134
- Combined Prediction Score: 0.7459269954854478
- Mean Citation Score: 418.282646
- Max Citation Score: 465.84067000000016
- Similarity Product: 398.4377220667411

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

Dataset: test